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.
It requires 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 65⁰C 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 cured mechanical strength at temperatures of up to 200⁰C or 390⁰F.
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 once fully cured.
MAX HTE provides a long pot life at room temperature suitable VARTM, fiber pultrusion, prepreg 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 will harden to a glass-like consistency after 8 hours at 25°C and will slightly re-flow when exposed to heat.
It requires a short heat exposure at 150°C or 302°F for the MAX HTE to cure with good mechanical strength and heat resistance.
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, allow the MAX HTE to cure under solar heat or by radiant infrared heat for at least 3 to 4 hours.
This 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 heat to induce curing or polymerization.
The cure activation temperature of most prepreg resins is 150°C or 302°F.
MAX HTE begins to cure at 80°C; it requires a longer cure time at this temperature.
The higher the cure temperature, the shorter the heat cure duration.
A processing oven, such as the one pictured below is often used for industrial heat curing process.
OTHER HEAT CURING TECHNIQUES
Infrared Heat Lamps Works Well For Large Surface Area Curing.
PHYSICAL PROPERTIES
Density | 1.10 grams/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 |
To convert Celsius to Fahrenheit, multiply °C
by 1.8 and add 32 to obtain °F.
For Example
100°C x 1.8 + 32 = 212°F
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 | 0.13 |
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 TEMPERATURE 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
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, 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.
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.
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 6x6-inch by ¼ inch cured sample of the MAX HTE was exposed to ascending temperature and the surface hardness measured using a both Type A and D Shore Hardness.
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.
Purchase This Scale With Any Of Our eBay Offering And Shipping Cost For The Scale Is Free.
Shipping overpayments is refunded after completion of sale
https://www.ebay.com/itm/222630300203
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.
MIXING PROCEDURE FOR ALL EPOXY RESIN SYSTEM (MIX RATIO AND COLOR MAY VARY)
How To Mix Epoxy Resin For Food Contact Coating. Avoid Tacky Spots, Minimize Air Bubble When Mixing - YouTube
Video will open in a new window
Using the eBay App? Paste link into a browser window:
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.
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.
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.
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. |
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
'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.
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.
Weaves:
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. |
Finishing Cross Reference And Resin Type Compatibility
RESIN COMPATIBILITY | 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 | |
HEXCEL 120 1.5-OUNCE FIBERGLASS PLAIN WEAVE 10 YARDS | |
HEXCEL 7532 7-OUNCE FIBERGLASS PLAIN WEAVE 5 YARDS | |
HEXCEL 7500 10 OUNCE FIBERGLASS PLAIN WEAVE 3 YARDS | |
HEXCEL 7500 10 OUNCE FIBERGLASS PLAIN WEAVE 5 YARDS | |
HEXCEL 3582 14 OUNCE FIBERGLASS SATIN WEAVE 5 YARDS | |
HEXCEL 3582 14 OUNCE FIBERGLASS SATIN WEAVE 10 YARDS | |
HEXCEL 1584 26 OUNCE FIBERGLASS SATIN WEAVE 3 YARDS | |
HEXCEL 1584 26 OUNCE FIBERGLASS SATIN WEAVE 5 YARDS | |
FIBERGLASS 45+/45- DOUBLE BIAS 3 YARDS | |
|
|
CARBON FIBER FABRIC 3K 2x2 TWILL WEAVE 6 OZ. 3 YARDS | |
CARBON FIBER FABRIC 3K PLAIN WEAVE 6 OZ 3 YARDS | |
|
|
KEVLAR 49 HEXCEL 351 PLAIN WEAVE FABRIC 2.2 OZ |
MAX BOND LOW VISCOSITY A/B
Marine Grade
MAX BOND LOW VISCOSITY 32-Ounce kit | |
MAX BOND LOW VISCOSITY 64-Ounce Kit | |
MAX BOND LOW VISCOSITY 1-Gallon Kit | |
MAX BOND LOW VISCOSITY 2-Gallon kit | |
MAX BOND LOW VISCOSITY 10-Gallon Kit |
MAX 1618 A/B
Crystal Clear, High Strength, Lowest Viscosity (Thin), Durability & Toughness, Excellent Wood Working Resin
MAX 1618 A/B 48-Ounce Kit | |
MAX 1618 A/B 3/4-Gallon Kit | |
MAX 1618 A/B 3/4-Gallon Kit | |
MAX 1618 A/B 1.5-Gallon Kit |
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 | |
MAX CLR A/B 48-Ounce Kit | |
MAX CLR A/B 96-Ounce Kit | |
MAX CLR A/B 96-Ounce Kit | |
MAX CLR A/B 1.5-Gallon Kit |
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 | |
MAX GRE A/B 96-Ounce Kit |
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 | |
MAX HTE A/B 40-Ounce Kit |
Step Three:
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.
Eliminating air entrapment or void porosity in an epoxy/fiberglass lay-up process
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.
ULTIMATE COMPRESSIVE STRENGTH
6500 Pounds To Failure / 0.498 Square Inch = 13,052 PSI Maximum Compressive Strength
************************************************************
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
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.