HIGH TEMPERATURE RESISTANT EPOXY 4 POTTING CASTING GLUE IMPREGNATING RESIN 80oz!

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Seller: theepoxyexperts ✉️ (18,562) 100%, Location: Ontario, California, US, Ships to: WORLDWIDE, Item: 222624247814 HIGH TEMPERATURE RESISTANT EPOXY 4 POTTING CASTING GLUE IMPREGNATING RESIN 80oz!.

MAX HTE A/B

HIGH-TEMPERATURE EPOXY

80-Ounce Kit Combined Volume

1/2 GALLON OF RESIN OR PART A (64 OUNCES)

1 PINT OF CURING AGENT (16 OUNCES)

4:1 MIX RATIO

This epoxy resin system requires a heat post-cure to achieve complete cure.

The MAX HTE A/B resin system will only achieve a partial cure (B-stage or semi-cured state) at room temperatures and will require exposure to elevated temperature for full cure state.

Using solar heat, infrared radiant heat or the use of a processing oven can be used to heat cure the resin system. The minimum activation temperature is 65 ⁰C or 150⁰F which will take up to 4 to 5 hours.

The higher the temperature the shorter the heat cure time needed to fully cure this resin system.  

 Please review the cure schedule in the properties table for more details.

DESCRIPTION

MAX HTE A/B is a two-part epoxy-based system specially formulated to provide structural strength at temperatures of up to 200⁰C or 390⁰F under pressure or load. It is formulated as an impregnating resin for fiberglass, carbon fiber, Kevlar, Spectra fiber and other specialty materials that require heat performance.

MAX HTE A/B can also be utilized as an adhesive, encapsulant or potting compound, tooling resin for high-temperature applications.

MAX HTE exhibits exceptional toughness and other mechanical properties such as adhesion, compressive strength and the flexural modulus at high-temperature exposure. MAX HTE also provides excellent chemical and water resistance.

MAX HTE provides a long pot life at room temperature suitable vacuum assisted resin transfer molding or VARTM, fiber pultrusion, pre-impregnation process with a relatively short heat cure time. It is specially designed to withstand continuous high-temperature service, high impact resistance and exposure to harsh conditions.

MAX HTE A/B is 100 % solids, low odor, and toxicity and does not contain Ozone Depleting Chemicals (ODC).

When mixed and allowed to gel at room temperature, MAX HTE will harden to a glass-like consistency and will slightly re-flow when exposed to heat. It will require a short heat cure develop a stronger durability or handling strength. 

(1 Hour minimum at 80⁰C or 55⁰C for 2 Hours Minimum).

 MAX HTE will fully cure when the part is exposed to the operating temperature or by curing at the specified cure schedule. It will not reach 100% cure without exposure heat post cure. If an oven is not available, allowing the MAX HTE to cure under solar heat or by radiant infrared heat for at least 3 to 4 hours will provide enough cure advancement for it to be handled without shattering.

Exposing the assembly part to direct solar heat (sun exposure) for a longer period will provide enough heat cure for the part to be handled. It will require a higher temperature exposure to attain a full cure. The initial heat exposure will prevent the resin from liquefaction or re-flow and allow enough physical strength for gentle handling.

Impregnating Resin For Carbon Fiber Fiberglass Heat Resistant Adhesive Protective Coating Casting Resin Electrical Potting Compound Coil Coating For Motor Winding

HEAT CURING

Heat Curing is a process where the mixed resin is placed in an oven or other sources of radiant heat that will induce cross-linking or curing reaction of the resin system. A processing oven, such as the one pictured below is often used for industrial heat curing process.

OTHER HEAT CURING TECHNIQUES  

If an oven is not available to provide the needed thermal post cure, exposing the assembled part to direct solar heat (sun exposure) for a period of 4 hours will provide enough heat cure for the part to be handled. Other heat curing such as infrared heat lamps can be used if a heat chamber or oven is not available.

INFRARED HEAT LAMPS WORKS WELL FOR LARGE SURFACE AREA CURING.

CARBON FIBER McLaren MP4-12C HIGH-TEMPERATURE RESISTANT ENGINE VENT

PHYSICAL PROPERTIES

Density

1.10 G/CC

Mixed Color

Amber Liquid

Mixed Viscosity

3000-4000 CPS at 25˚C

Mix Ratio

28 to 30 Parts "B" to 100 Parts "A" By Weight Or 4:1 By Volume

Gel Time/Pot Life

3 Hours at 25 ˚C

Optimum Full Cure Time Schedule

3 Hours at 25 ˚C plus 3 Hours At 130 ˚C

Or 3 Hours at 25˚C plus 2 Hours At 155˚C

MECHANICAL PROPERTIES Specimens were cured 3 Hours at 25˚C plus 2 Hours At 155˚C

Hardness

95 Shore Durometer D

Tee-Peel Strength (7781 fiberglass/fiberglass)

12 Pounds Per Inch Width

Tensile Strength

11.0 KSI At 25 ˚C

Tensile Modulus

372 KSI At 25 ˚C

Tensile Shear Strength

4200 PSI At 25 ˚C

Test method ASTM D2557

3300 PSI At 60 ˚C

2900 PSI At 80 ˚C

2200 PSI At 121 ˚C

Compressive Strength

15,000 PSI At 25 ˚C

Glass Transition Temperature

205 ˚C

Chemical Resistance Test (120 days 77°F Immersion) Specimens were cured 3 Hours at 25˚C plus 2 Hours At 155˚C - %Weight Change

Distilled Water

1.63

Acetone

6.86

Methanol

7.04

Ethanol

0.44

Toluene

0.27

25% Acetic Acid

12.95

30% Sulfuric Acid

1.81

10% Nitric Acid

3.73

10% Ammonium Hydroxide

1.68

10% Sodium Hydroxide

1.38

Motor Oil Soak

No Effect

Brake Fluid Soak

1.11

Gasoline

5.79

HIGH HEAT TESTING UNDER LOAD Specimens were cured 3 Hours at 25˚C plus 3 Hours At 135˚C 

THREE POINT  BEAM TEST AT HEAT  WITH 40 POUNDS STATIC WEIGHT APPLIED ON THE SPECIMEN

MAX HTE - High heat exposure test under mechanical load

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Flexural strength is also known as modulus of rupture, bend strength, or fracture strength. Flexural strength is measured in terms of stress and thus is expressed in pascal (Pa) in the SI system. The value represents the highest stress experienced within the material at its moment of rupture. In a bending test, the highest stress is reached on the surface of the sample. For a rectangular sample under a load in a 3 point bend setup:

  • F is the load (force) at the fracture point L is the length of the support span b is the width d is the thickness

The general physical property of a plastic polymer is that it is directly correlated with temperature it is exposed to. By exposing it to varying degree of heat a graph can be plotted and this will demonstrate the relationship such as heat resistance of a polymer to temperature. But in no clear manner that the Shore Hardness of a polymer will reveal other mechanical properties such as Heat Distortion, Transition of glass or Tg and other mechanical properties.

The graph presented above serves as a guide on how MAX HTE performs when it is heated to varying temperatures. A 6-inch by 6-inch 1/2 inch thick specimen cured per the schedule above was exposed to measured elevated temperature and the Shore Hardness was measured which provides an excellent test for the heat resistance. A similar performance trend in compression, tensile and tensile shear and other mechanical test was observed.vvvvv

Durometer Hardness is used to determine the relative hardness or softness of materials, usually plastic or rubber. The test measures the penetration of a specified indenter into the material under specified conditions of force and time. The hardness value is often used to identify or specify a particular performance of a plastic as quality control measure or performance latitude.

The hardness numbers are derived from a scale used predominantly in polymer plastics; these are Shore A and Shore D hardness scale.

A 6-inch by 6-inch by ¼ inch cured sample of the MAX HTE was exposed to ascending temperature condition and the surface hardness was tested using a both Type A and Type D Shore Hardness Durometer. Shore Hardness determines the resistance of a plastic substrates’ resistance to surface deformation from a constant load.

The Shore Hardness testing was performed in compliance with ASTM D 2240

This graph demonstrates the heat resistance of the surface hardness of MAX HTE in relation to exposure temperature. Other heat exposure related mechanical test was performed to determine MAX HTE heat resistance properties and yielded identical trend line as this graph demonstrates.

The A scale is used for softer and flexible materials such as rubber or polymers that can be flexed without rupturing.

The D scale is used for harder materials such as plastic sheeting, plastic hard hats or plastic interior car trims.

The carbon fiber laminate was allowed to cure for 4 hours under vacuum pressure and post cured

under solar heat for an additional post heat cure .

EPOXY RESIN MIXING AND USAGE APPLICATIONS

The use of a weighing scale is highly recommended for proportioning the 4:1 mix ratio. Using volumetric measuring is fine, however, weighing the resin and curing agent yields better-cured mechanical properties, batch repeatability, and less waste from mixing over-sized batch. Use this digital scale to precisely weigh the resin and curing agent and ensure full polymerization of the resin and curing agent and prevent leaching.

THE USE OF A WEIGHING SCALE IS HIGHLY RECOMMENDED TO ENSURE PROPER CURE

Purchase This Scale With Any Of Our eBay Offering And Shipping Cost For The Scale Is Free 

https://www.ebay.com/itm/222630300203

Please request a total before paying for combined shipping savings.

Please view the following video for the proper mixing of epoxy resins. It demonstrates the proper technique of mixing any type of epoxy resin. The proper cure and final performance of any epoxy resin system are highly dependent on the quality and thoroughness of the mix.

The resin and curing agent must be mixed to a homogeneous consistency.

EVIDENCE OF POOR MIXING

    MIXING PROCEDURE FOR ALL EPOXY RESIN SYSTEM (MIX RATIO AND COLOR MAY VARY)
Although the featured epoxy resin system is different from the MAX HTE resin system, the general technique and proper mixing procedure is applicable. Use this mixing technique to eliminate tacky spots, uncured sections and poor mechanical performance that is caused by poor mixing and incorporation of the resin and curing agent.

PROPER MIXING TECHNIQUE

How To Mix Epoxy Resin For Food Contact Coating. Avoid Tacky Spots, Minimize Air Bubble When Mixing - YouTube

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The optimum mechanical performance will be achieved when the fabricated part is exposed to the elevated temperature.  Please view the cure schedule in the physical properties table for the optimum cure schedule.

For Bonding Applications BONDING DESIGN GUIDE

Two of the major factors influencing the design of lap joints is the magnitude and direction of the load that the joint must bear. Most adhesives used for bonding flat surfaces are relatively rigid, strong in shear, and not so strong in peel or cleavage. Thus by designing the joint so that the adhesive is in shear, the effect of peel or cleavage stress is minimized.

 Lap shear joints can be affected by shear concentration when the adherents yield. A common lap shear joint “A” in Figure 1-2 tends to deflect (yield) under stress and aligns itself to a shape resembling “B”. Instead of a simple shear stress, the tension effect at edges 1 and 2 creates a peeling stress because a high proportion of the load is carried at the edges of the lap.  Figure 1-3 illustrates several joint designs. Some show how the problem of substrate yield can be minimized, and others show the strengths and weaknesses in various bonded joints.

GENERAL BONDING DESIGN AND GUIDELINE

SURFACE PREPARATION  OF VARIOUS SUBSTRATES FOR BONDING OR COATING In virtually every application the quality of the bond between the resin system and the surface to which it is applied is improved if the surface is clean and dry. This is particularly true of adhesive applications where stress will be applied to the cured bond line. It is also true where protective coatings are used. The following surface preparation procedures are recommended.

METALS

1. Degrease – Wipe faying surfaces with Methyl Ethyl Ketone (MEK) to remove all oil, dirt, and grease.

 

2. Etch – For optimum results, metal parts should be immersed in a chromic acid bath solution consisting of:

Sodium dichromate – 4 parts by weight

Sulfuric acid – 10 parts by weight

Distilled Water – 30 parts by weight

The solution should be held at a temperature of 160°F (71°C), and the parts left immersed for 5 to 7 minutes.

 

3. Rinse – remove metal parts from etching bath and rinse in clean cold water (de-ionized water is recommended). If thoroughly clean, metal surfaces so treated will hold a thin film of water.

 

4. Dry – To accelerate drying, items to be bonded can be placed in an air-circulating oven.

 

ALTERNATE PROCEDURE

1. Degrease, scour and dry – Often etching as outlined above is not practical. The metal surfaces may be cleaned by degreasing as noted above, scouring with an alkaline cleanser followed by rinsing and drying.

 

2. Degrease and dry – Degrease the surface as noted above, sand or sandblast the surface lightly but thoroughly. Rinse with acetone or Methyl Ethyl Ketone (MEK), and dry

GLASS

1. Degrease – With MEK as above, or with a strong boiling solution of a good grade household detergent.

 

2. Etch – For optimum results, degreasing can be followed with the chromic acid bath outlined above.

 

WOOD

1. Sand – Bonding surfaces should be sanded lightly, but thoroughly to remove all external contamination.

 

2. Clean – Carefully remove all dust, or particles of wood from sanded areas. A stiff and clean brush or compressed air can be used.

 

PLASTIC

1. Clean – Remove all dirt, oil, or other surface contaminates with soap and water, followed by thorough rinsing and allow to dry. A solvent that does not have a detrimental effect may also be used.

 

2. Sand – Surfaces to be bonded should be sanded lightly, but thoroughly to remove surface sheen.

 

3. Clean – Carefully remove all dust or particles of plastic from the sanded area. A clean brush, lint-free cloth, or compressed air may be used.

  

Simple Test To Determine Surface Wetting

Surface Test Prep Before Applying

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For Encapsulating Electronic Parts Premix the Part A and Part B at a 4:1 mix ratio by weight or volume and mix as demonstrated in the instructional video. Pre-arrange the wire leads to the desired position and secure. insure that the component housing can withstand the cure temperature to be encapsulated. Pour or dispense only from one corner of the component casing and allow the material to completely flow and fill throughout the casing. This technique will reduce voids and air entrapment. Allow the resin to gel or cure at room temperature for at least 4 hours or until dry to the touch. Place the component in an oven and post cure for 3 Hours At 130˚C.

Use these standards and conversion to determine yield and usage cost

1 GALLON = 231 CUBIC INCHES

1 GALLON OF RESIN CAN COVERS 1608 SQUARE FEET

1 MIL OR 0.001 INCH CURED COATING THICKNESS

1 GALLON OF RESIN IS 128 OUNCES

1 GALLON OF MIXED EPOXY RESIN IS 9.23 POUNDS

1 GALLON OF RESIN IS 3.7854 LITERS

MAX HTE used as an impregnating resin for fiberglass and carbon fiber. Carbon Fiber McLaren MP4-12c High-Temperature Resistant Engine Vent -Typical Temperature Exposure Is 350°F

 

COMPOSITE FABRICATING BASIC GUIDELINES By definition, a fabricated COMPOSITE material is a manufactured collection of two or more ingredients or products intentionally combined to form a new homogeneous material that is defined by its performance that should uniquely greater than the sum of its individual parts. This process of fabrication is also defined as a SYNERGISTIC COMPOSITION.

COMPOSITE MATERIAL COMPOSITION

REINFORCING FABRIC       &     IMPREGNATING RESIN

  PLUS   

 

'ENGINEERED PROCESS'

EQUALS

COMPOSITE LAMINATE WITH THE BEST WEIGHT TO STRENGTH PERFORMANCE

 

With respect to the raw materials selection -fabric and resin, the fabricating process and the and curing and test validation of composite part,

 these aspects must be carefully considered and in the engineering phase of the composite.

Step One: Fabric Selection

TYPES OF FABRIC WEAVE STYLE AND SURFACE FINISHING FOR RESIN TYPE COMPATIBILITY

Fabrics are generally considered ”balanced” if the breaking strength is within 15% warp to fill and are best in bias applications on lightweight structures.

“Unbalanced” fabrics are excellent when a greater load is required one direction and a lesser load in the perpendicular direction.  

    • Tow: The bundle of individual carbon filaments used to weave carbon fabric. 50k tow means there are 48-50,000 carbon filaments in the tow. Smaller tow i.e. 12k, 6k, 3k and 1k are obtained by dividing the 50k tow into smaller bundles.
    • Thread Count: The number of threads (tow in carbon and yarn in Aramid) per inch. The first number will be the warp count and the second will be the fill count. 
    • Fill: The threads that run the width of the roll or bolt and perpendicular to the warp threads. 
    • Warp: The threads that run the length of the roll or bolt and perpendicular to the fill threads. 
    • Finish: The chemical treatment to fiberglass making it compatible with resin systems, therefore improving the bond between the fiber and the resin. Finishing fiberglass typically decreases the fiber strength by as much as 50%. Both Silane and Volan finishes are epoxy compatible. Historically, Volan has been considered a softer finish for a more pliable fabric, but recent advances have yielded some excellent soft Silane finishes.
    • Thickness: Measured in fractions of an inch. The thicker the fabric the more resin required to fill the weave to obtain a surface-smooth finished part.

Weaves:

    • Plain weave means the warp and fill threads cross alternately. This is the most common weave.
    • 4 Harness (4 HS Satin or crowfoot) weave means the fill thread floats over three warp threads, then under one warp thread. This weave is more pliable than the plain weave, therefore conforms to complex curves more easily.
    • 8 Harness (8 HS Satin) weave means the fill thread floats over seven warp threads, then under one warp thread. This weave is the most pliable of the standard fiberglass weaves.
    • 2 x 2 Twill weave means the fill thread floats over two warp threads, then fewer than two warp threads. This weave is found most commonly in carbon fabrics and is more pliable than plain weave.

Most fabrics are stronger in the warp than the fill because higher tension is placed on the warp fiber keeping it straighter during the weaving process.

Rare exceptions occur when a larger, therefore stronger thread is used in the fill direction than the warp direction. 

 

PLAIN WEAVE

Is a very simple weave pattern and the most common style. The warp and fill yarns are interlaced over and under each other in alternating fashion. Plain weave provides good stability, porosity and the least yarn slippage for a given yarn count.

 

8 HARNESS SATIN WEAVE

The eight-harness satin is similar to the four-harness satin except that one filling yarn floats over seven warp yarns and under one.

This is a very pliable weave and is used for forming over curved surfaces .

 

4 HARNESS SATIN WEAVE

The four-harness satin weave is more pliable than the plain weave and is easier to conform to curved surfaces typical in reinforced plastics. In this weave pattern, there is a three by one interfacing where a filling yarn floats over three warp yarns and under one.

 

2x2 TWILL WEAVE

Twill weave is more pliable than the plain weave and has better drivability while maintaining more fabric stability than a four or eight harness satin weave. The weave pattern is characterized by a diagonal rib created by one warp yarn floating over at least two filling yarns.

  SATIN WEAVE TYPE CONFORMITY UNTO CURVED SHAPES

Plain Weaves, Bi-axial, Unidirectional Styles For Directional High Strength Parts 
Use this weave style cloth when high strength parts are desired.
It is ideal for reinforcement, mold making, aircraft and auto parts tooling, marine, and other composite lightweight applications. 7544 Fiberglass - YouTube

FIBERGLASS FINISHING FOR RESIN COMPATIBILITY

Finishing Cross Reference  And  Resin Type Compatibility  

RESIN COMPATIBILITY

Burlington Industries

ClarkSchwebel

J.P Stevens

Uniglass Industries

Epoxy, Polyester

VOLAN A

VOLAN A

VOLAN A

VOLAN A

Epoxy, Polyester

I-550

CS-550

S-550

UM-550

Phenolic, Melamine

I-588

A1100

A1100

A1100

Epoxy, Polyimide

I-589

Z6040

S-920

UM-675

Epoxy

I-399

CS-272A

S-935

UM-702

Epoxy

 

CS-307

 

UM-718

Epoxy

 

CS-344

 

UM-724

Silicone

112

112

 

n-pH (neutral pH)

AVAILABLE FIBERGLASS, CARBON FIBER, AND KEVLAR FABRICS

HEXCEL 120 1.5-OUNCE FIBERGLASS PLAIN WEAVE 5 YARDS

https://www.ebay.com/itm/222623985867

HEXCEL 120 1.5-OUNCE FIBERGLASS PLAIN WEAVE 10 YARDS

https://www.ebay.com/itm/311946399588

HEXCEL 7532 7-OUNCE FIBERGLASS PLAIN WEAVE 5 YARDS

https://www.ebay.com/itm/222624899999

HEXCEL 7500 10 OUNCE FIBERGLASS PLAIN WEAVE 3 YARDS

https://www.ebay.com/itm/222624968104

HEXCEL 7500 10 OUNCE FIBERGLASS PLAIN WEAVE 5 YARDS

https://www.ebay.com/itm/311946460378

HEXCEL 3582 14 OUNCE FIBERGLASS SATIN WEAVE 5 YARDS

https://www.ebay.com/itm/312023587290

HEXCEL 3582 14 OUNCE FIBERGLASS SATIN WEAVE 10 YARDS

https://www.ebay.com/itm/222753506374

HEXCEL 1584 26 OUNCE FIBERGLASS SATIN WEAVE 3 YARDS

https://www.ebay.com/itm/311947365010

HEXCEL 1584 26 OUNCE FIBERGLASS SATIN WEAVE 5 YARDS

https://www.ebay.com/itm/222629157570

FIBERGLASS 45+/45- DOUBLE BIAS 3 YARDS

https://www.ebay.com/itm/311947299244

 

 

CARBON FIBER FABRIC 3K 2x2 TWILL WEAVE 6 OZ. 3 YARDS

https://www.ebay.com/itm/311947275431

CARBON FIBER FABRIC 3K PLAIN WEAVE 6 OZ 3 YARDS

https://www.ebay.com/itm /311947292012

 

 

KEVLAR 49 HEXCEL 351 PLAIN WEAVE FABRIC 2.2 OZ

https://www.ebay.com/itm/222623951106

Step Two:  Choose The Best Epoxy Resin System For The Application
The epoxy resin used in fabricating a laminate will dictate how the FRP will perform when load or pressure is implied on the part.
To choose the proper resin system, consider the following factors that is crucial to a laminate's performance.
SIZE AND CONFIGURATION OF THE PART
(NUMBER OF PLIES  AND CONTOURED, FLAT OR PROFILED)
CONSOLIDATING FORCE
(FREE STANDING DRY OR HAND LAY-UP, VACUUM BAG OR PLATEN PRESS CURING)
CURING CAPABILITIES
(HEAT CURED OR ROOM TEMPERATURE CURED)
LOAD PARAMETERS
(SHEARING FORCE, TORSIONAL AND DIRECTIONAL LOAD, BEAM STRENGTH) ENVIRONMENTAL EXPOSURE
The principal role of the resin is to bind the fabric into a homogeneous rigid substrate
(OPERATING TEMPERATURE, AMBIENT CONDITIONS, CHEMICAL EXPOSURE, CYCLIC FORCE LOADING)
MATERIAL AND PRODUCTION COST (BUYING IN BULK WILL ALWAYS PROVIDE THE BEST OVERALL COSTS) These factors will dictate the design and the composition of the part and must be carefully considered during the design and engineering phase of the fabrication. TOP SELLING IMPREGNATING RESIN SYSTEM 

MAX BOND LOW VISCOSITY A/B Marine Grade Boat Building Resin System, Fiberglassing/Impregnating, Water Resistance, Cured Structural Strength

MAX BOND LOW VISCOSITY 32-Ounce kit

https://www.ebay.com/itm/311947109148

MAX BOND LOW VISCOSITY 64-Ounce Kit

https://www.ebay.com/itm/311947125422

MAX BOND LOW VISCOSITY 1-Gallon Kit

https://www.ebay.com/itm/311947117608

MAX BOND LOW VISCOSITY 2-Gallon kit

https://www.ebay.com/itm/311946370391

MAX BOND LOW VISCOSITY 10-Gallon Kit

https://www.ebay.com/itm/222624960548

MAX 1618 A/B Crystal Clear, High Strength, Lowest Viscosity (Thin), Durability & Toughness, Excellent Wood Working Resin

MAX 1618 A/B 48-Ounce Kit

https://www.ebay.com/itm/222627258390

MAX 1618 A/B 3/4-Gallon Kit

https://www.ebay.com/itm/222625113128

MAX 1618 A/B 3/4-Gallon Kit

https://www.ebay.com/itm/222627258390

MAX 1618 A/B 1.5-Gallon Kit

https://www.ebay.com/itm/311946441558

MAX CLR A/B Water Clear Transparency, Chemical Resistance, FDA Compliant For Food Contact, High Impact, Low Viscosity

MAX CLR A/B 24-Ounce Kit

https://www.ebay.com/itm/222623963194

MAX CLR A/B 48-Ounce Kit

https://www.ebay.com/itm/311947320101

MAX CLR A/B 96-Ounce Kit

https://www.ebay.com/itm/222625329068

MAX CLR A/B 96-Ounce Kit

https://www.ebay.com/itm/222625338230

MAX CLR A/B 1.5-Gallon Kit

https://www.ebay.com/itm/222626972426

MAX GRE A/B GASOLINE RESISTANT EPOXY RESIN Resistant To Gasoline/E85 Blend, Acids & Bases, Sealing, Coating, Impregnating Resin

MAX GRE A/B 48-Ounce Kit

https://www.ebay.com/itm/311946473553

MAX GRE A/B 96-Ounce Kit

https://www.ebay.com/itm/311947247402

MAX  HTE  A/B HIGH-TEMPERATURE EPOXY Heat Cured Resin System For Temperature Resistant Bonding, Electronic Potting, Coating, Bonding

MAX HTE A/B 80-Ounce Kit

https://www.ebay.com/itm/222624247814

MAX HTE A/B 40-Ounce Kit

https://www.ebay.com/itm/222624236832

Step Three: 

Proper Lay-Up Technique -Putting It All Together
Pre-lay-up notes Lay out the fabric and pre-cut to size and set aside Avoid distorting the weave pattern as much as possible For fiberglass molding, ensure the mold is clean and adequate mold release is used View our video presentation above "MAX EPOXY RESIN MIXING TECHNIQUE" Mix the resin only when all needed materials and implements needed are ready and within reach

Mix the proper amount of resin needed and be accurate proportioning the resin and curing agent. Adding more curing agent than the recommended mix ratio will not promote a faster cure. Over saturation or starving the fiberglass or any composite fabric will yield poor mechanical performance. When mechanical load or pressure is applied to the composite laminate, the physical strength of the fabric should bear the stress and not the resin. If the laminate is over saturated with the resin it will most likely to fracture or shatter instead of rebounding and resist damage.  Don’t how much resin to use to go with the fiberglass?

A good rule of thumb is to maintain a minimum of 30 to 35% resin content by weight,  this is the optimum ratio used in high-performance prepreg (or pre-impregnated fabrics) typically used in aerospace and high-performance structural application.  For general hand lay-ups, calculate using 60% fabric weight to 40% resin weight as a safety factor.  This will ensure that the fabricated laminate will be below 40% resin content depending on the waste factor accrued during fabrication. Place the entire pre-cut fiberglass to be used on a digital scale to determine the fabric to resin weight ratio.

Measuring by weight will ensure accurate composite fabrication and repeatability, rather than using OSY data.

THE USE OF A WEIGHING SCALE IS HIGHLY RECOMMENDED 

Purchase this scale with any of our product offering and the shipping cost of the scale is free. 

https://www.ebay.com/itm/222630300203

A good rule of thumb is to maintain a minimum of 30 to 35% resin content by weight. This is the optimum ratio used in high-performance prepreg (or pre-impregnated fabrics) typically used in aerospace and high-performance structural application. For general hand lay-ups, calculate using 60% fabric weight to 40% resin weight as a safety factor. This will ensure that the fabricated laminate will be below 40% resin content depending on the waste factor accrued during fabrication.

Place the entire pre-cut fiberglass to be used on a digital scale to determine the fabric to resin weight ratio. Measuring by weight will ensure accurate composite fabrication and repeatability, rather than using OSY data. 1 ounce per square yard is equal to 28.35 grams 1 square yard equals to 1296 square inches (36 inches x 36 inches)

FOR EXAMPLE 1 yard of 8-ounces per square yard (OSY) fabric weighs 226 grams 1 yard of 10-ounces per square yard (OSY) fabric weighs 283 grams Ounces per square yard or OSY is also known as aerial weight, which is the most common unit of measurement for composite fabrics.

To determine how much resin is needed to adequately impregnate the fiberglass, use the following equation: (Total Weight of Fabric divided by 60%)X( 40%)= weight of mixed resin needed MASTER EQUATION (fw/60%)x(40%)=rn

FOR EXAMPLE 1 SQUARE YARD OF 8-OSY FIBERGLASS FABRIC WEIGHS 226 GRAMS (226 grams of dry fiberglass / 60%) X 40% = 150.66 grams of resin needed So for every square yard of 8-ounce fabric, it will need 150.66 grams of mixed resin. Computing For Resin And Curing Agent Amount 150.66 grams of resin needed

MIX RATIO OF RESIN SYSTEM IS 2:1 OR 50 PHR (per hundred resin) 2 = 66.67% (2/3)  + 1 = 33.33%(1/3) (2+1)=3 or (66.67%+33.33%)=100% or (2/3+1/3)= 3/3 150.66 x 66.67%= 100.45 grams of Part A RESIN 150.66 x 33.33%= 50.21 grams of Part B CURING AGENT 100.45 + 50.21 = 150.66  A/B MIXTURE

GENERAL LAY-UP PROCEDURE Apply the mixed resin onto the surface and then lay the fabric and allow the resin to saturate through the fabric.

NOT THE OTHER WAY AROUND

This is one of the most common processing error that yields sub-standard laminates. By laying the fiberglass onto a layer of the prepared resin, fewer air bubbles are entrapped during the wetting-out stage. Air is pushed up and outwards instead of forcing the resin through the fabric which will entrap air bubbles. This technique will displace air pockets unhindered and uniformly disperse the impregnating resin throughout the fiberglass.

HAND LAY-UP TECHNIQUE

Eliminating air entrapment or void porosity in an epoxy/fiberglass lay-up process

Fiberglass Hand Lay Up For Canoe and Kayak Building- Cedar Strip Kayak Fiberglassing - YouTube

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Basic Hand Lay-up Fiberglassing

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VACUUM BAGGING PROCESS
 For performance critical application used in aerospace vehicles, composite framing for automotive vehicles and marine vessels,
a process called 'Vacuum Bagging' is employed to ensure the complete consolidation of every layer of fabric. 
The entire tooling and lay-up are encased in an airtight envelope or bagging and a high-efficiency vacuum pump is used to draw out the air within the vacuum bag to create a negative atmospheric pressure.
Once a full vacuum (29.9 Inches of Mercury) is achieved, the negative pressure applies a compacting force of 14.4 pounds per square inch (maximum vacuum pressure at sea level)
 is applied to the vacuum bag transferring the force to the entire surface area of the laminate.
Vacuum pressure is maintained until the resin cures to a solid. For room temperature curing resin system, the vacuum pump is left in operation for a minimum of 18 hours.
External heat can be applied to the entire lay-up, thus accelerating the cure of the resin system.
The vacuum force also removes any entrapped air bubble between the layers of fabric and eliminate what is called, porosity or air voids.
Porosity within a laminate creates weak spots in the structure that can be the source of mechanical failure when force or load is applied to the laminate.  
The standard atmosphere (symbol: atm) is a unit of pressure defined as 1
01325 Pa (1.01325 bar), equivalent to 
760 mm Mercury or  29.92 inches Mercury or
14.696 pounds per square inch of pressure.

FiberglaSs And Carbon Fiber Vacuum Bagging and Flat Panel Laminate - YouTube

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AUTOCLAVE CURING PROCESS
 Autoclave curing processing is the most common method used in large-scale production of composite products.
The aerospace industry, which includes space exploration rockets and vehicles, satellites, and military airplane utilizes this composite fabrication process due to the critical nature of the application.
The mechanical demands of the composite are often pushed to the upper limits and autoclaved process yields composites with the best weight to strength ratio.

BASIC OPERATION OF THE AUTOCLAVE PROCESS
In the autoclave process, high pressure and heat are applied to the part through the autoclave atmosphere,
with a vacuum bag used to apply additional pressure and protect the laminate from the autoclave gases. 
The cure cycle for a specific application is usually determined empirically and, as a result, several cure cycles may be developed for a single material system,
to account for differences in laminate thickness or to optimize particular properties in the cured part.
The typical autoclave cure cycle is a two-step process.
First, vacuum and pressure are applied while the temperature is ramped up to an intermediate level and held there for a short period of time.
The heat reduces the resin viscosity, allowing it to flow and making it easier for trapped air and volatiles to escape.
The resin also begins wetting the fibers at this stage.
In the second ramp up, the temperature is raised to the final cure temperature and held for a sufficient length of time to complete the cure reaction.
During this step, the viscosity continues to drop, but preset temperature ramp rates and hold times then stabilize viscosity at a level that permits adequate consolidation and fiber wetting,
while avoiding excessive flow and subsequent resin starvation. 
These control factors also slow the reaction rate, which prevents excessive heat generation from the exothermic polymerization process .
Upon completion, the cured mechanical performance of the composite is often much stronger and lighter compared to a hand lay-up, or vacuum bagged composite laminate.
VACUUM INFUSION PROCESS
Vacuum Infusion Process is also known in the composites industry as 
Vacuum Assisted Resin Transfer Molding or VARTM.

Similar to the Vacuum Bagging Process where the negative pressure is used to apply consolidation force to the laminate while the resin cures, the resin is infused into the fabric lay-up by sucking the impregnating resin and thus forming the composite laminate.

The VARTM Process produces parts that require less secondary steps, such as trimming, polishing or grinding with excellent mechanical properties. However, the vacuum infusion requires more additional or supplemental related equipment and expendable materials. So the pros and cons of each presented composite fabrication process should be carefully  determined  to suit the user's  capabilities  and needs. Please view the following video demonstration which explains the process of Vacuum Infusion or VARTM process.

MAX 1618 A/B VACUUM ASSISTED RESIN TRANSFER MOLDING PROCESS

CARBON FIBER VACUUM INFUSION WITH EPOXY RESIN - VACUUM BAGGING WITH MAX 1618 EPOXY RESIN - YouTube

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Step Four: Proper Curing
MAX EPOXY RESIN SYSTEM product line is resistant to amine-blush, however, it is recommended not to mix any resin systems in high humidity conditions, greater than 60%.
Review the PHYSICAL PROPERTIES TABLE for the proper cure conditions Review the published data and information for proper usage, application, and general safety information. Our expert staff of engineers is always available for consultation and assistance.
Allow the lay-up to cure for a minimum of 24 to 36  hours before handling.
Optimum cured properties can take up to 7 days depending on the ambient cure condition. 
The ideal temperature cure condition of most room temperature epoxy resin is 22°C - 27°C at 20% relative humidity.
Higher ambient curing temperatures will promote faster polymerization and development of cured mechanical properties.
Improving mechanical performance via post heat cure
 A short heat post cure will further improve the mechanical performance of most epoxy resins.
 Allow the applied resin system to cure at room temperature until for 18 to 24 hours and if possible,
expose heat cure it in an oven or other sources of radiant heat (220°F to 250°F) for 45 minute to an hour.
You can also expose it to direct sunlight but place a dark colored cover, such as a  plastic  tarp or cardboard to protect it from ultraviolet exposure.
In general room temperature cured epoxy resin has a maximum operating temperature of 160°F or lower.
A short heat post cure will ensure that the mixed epoxy system is fully cured,  especially for room temperature cure system that can take up to 7 days to achieve 100% cure
Some darkening or yellowing of the epoxy resin may occur if overexposed to high temperature (>250°F).
AMINE BLUSH
The affinity of an amine compound (curing agent) to moisture and carbon dioxide creates a carbonate compound and forms what is called amine blush.
Amine blush is a wax-like layer that forms as most epoxies cure. If the epoxy system is cured in extreme humidity (>70%).
It will be seen as a white and waxy layer that must be removed by physical sanding of the surface followed by an acetone wipe.
TESTING THE COMPOSITE
DETERMINATION OF THE FABRIC-RESIN RATIO 

TESTING FABRIC TO RESIN RATIO VIA RESIN BURN OUT - YouTube

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ULTIMATE COMPRESSIVE STRENGTH

 ULTIMATE COMPRESSIVE STRENGTH TEST OF FIBERGLASS LAMINATE TOOLING BOARD. - YouTube

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6500 Pounds To Failure / 0.498 Square Inch = 13,052 PSI Maximum Compressive Strength

SPECIMEN EXAMINATION AFTER COMPRESSION TEST - YouTube

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************************************************************

DON'T FORGET OUR EPOXY MIXING KIT

Click The Link To Add To Order    https://www.ebay.com/itm/222623932456

EVERYTHING YOU NEED TO MEASURE, MIX, DISPENSE OR APPLY 

Proportioning the correct amount is equally as important to attain the intended cured properties of the resin system.
T he container in which the epoxy and curing agent is mixed is an important consideration when mixing an epoxy resin system. 
The container must withstand the tenacity of the chemical and must be free of contamination.
Most epoxy curing agent has a degree of corrosivity, as a general practice, protective gloves should be worn when handling chemicals of the same nature.
MIXING KIT CONTENTS  

1 Each Digital Scale -Durable, Accurate Up To 2000.0 Grams   

4 Each 32-ounce (1 Quart) Clear HDPE Plastic Mix Cups

4 Each 16-ounce (1 Pint) Clear HDPE Plastic Mix Cups

One Size Fits All Powder-Free Latex Gloves 

2 Each Graduated Syringes

Wooden Stir Sticks

Foam Brush 

 

IMPORTANT NOTICE

Your purchase constitutes the acceptance of this disclaimer. Please review before purchasing this product.

The user should thoroughly test any proposed use of this product and independently conclude the satisfactory performance in the application. Likewise, if the manner in which this product is used requires government approval or clearance, the user must obtain said approval.

The information contained herein is based on data believed to be accurate at the time of publication. Data and parameters cited have been obtained through published information, PolymerProducts and  Polymer Composites Inc. laboratories using materials under controlled conditions. Data of this type should not be used for a specification for fabrication and design. It is the user's responsibility to determine this Composites fitness for use.

There is no warranty of merchantability for fitness of use, nor any other express implied warranty. The user's exclusive remedy and the manufacturer's liability are limited to refund of the purchase price or replacement of the product within the agreed warranty period. PolymerProducts and its direct representative will not be liable for incidental or consequential damages of any kind. Determination of the suitability of any kind of information or product for the use contemplated by the user, the manner of that use and whether there is any infringement of patents is the sole liability of the user.

  • Condition: Brand New
  • Model: MAX HTE A/B 80 OUNCE KIT
  • Country/Region of Manufacture: United States
  • CHEMICAL RESISTANT: ACIDS AND BASE CHEMICAL RESISTANT
  • HIGH TEMPERATURE RESISTANT: USE UP TO 350 DEGREES FAHRENHEIT
  • CASTING POTTING INSULATING: ENGINE HEAT RESISTANT, COIL COATINGS, ELECTRONIC
  • SPEAKER VOICE COIL ADHESIVE: BONDS TO KAPTON KEVLAR POLYIMIDE
  • LOW VISCOSITY: FAST FABRIC WET OUT 7 CASTING
  • Type: EPOXY RESIN
  • MPN: MAXHTE80OZ
  • Brand: MAX EPOXY RESIN SYSTEM

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