MAX CAST A/B

Extremely Flexible Epoxy Resin System
24 Ounce Kit Combined Volume
16 Fluid Ounce of resin PART A
8 Fluid Ounces of curing agent PART B

2:1 Mix Ratio By Weight Or By Volume
Low Viscosity, Medium Set Time, Cures Clear
Used For Casting, Electronic Potting, Flexible Adhesive And Coating

DESCRIPTION
MAX CAST A/B is a two-part epoxy/urethane hybrid system specially formulated to provide extreme flexibility and elongation suitable for specialty casting and embedding applications.MAX CAST will cure to a tough, flexible and a very tear resistant casting resin that is suitable for small to large castings.  It can also be utilized as an adhesive that demonstrates a flexible bond line and higher peel resistance.
It provides a secured bond to fabrics, plastics, porous and non porous materials that can withstand repeated flexing and bending. 
MAX CAST A/B resists chipping, cracking and stress mark due to extreme bending, flexing and cyclic vibration movement. 

It will not crack and demonstrates excellent dimensional stability at temperatures -10°C  and up to 100°C. It can be flexed and folded without shattering or stress cracking. Specimens were cured for 48 hours at room temperature to achieve full cure.

1/16 THICK FILM TEAR RESISTANCE AND MEMORY REBOUND

MAX CAST A/B EXTREME FLEX AND TEAR RESISTANT EPOXY RESIN - YouTube

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Physical Properties

MIX RATIO

2:1

Tee-Peel Strength PC to PC

25 Pounds Per Inch Width

Tear Resistance per ASTM D470

97 Pounds

Tensile Shear Strength

1,800 PSI   At 25 °C

 

2,200 PSI   At -80°C

 

450  PSI  At 100 °C

Tensile Strength

1,600 PSI @ 25°C

Elongation At Break ASTM D638

50 % @ 25°C

Hardness ASTM D 2240

60 Shore D
or
80 Shore A

Impact Resistance

Two-Inch Diameter Ball,560 Grams Dropped At Height 24 Inches

 

No Damage, Rebounded

 Electrical Properties 

Volume Resistivity

4.7 X 10 ^13 Ohms-CM

Dielectric  Strength ASTM D150

480 Volts Per Mil .001 Inch

Dielectric Constant ASTM D149

4.0 (10 kHz)

Dissipation Factor ASTM D150

.014 (10 kHz)

Rubber Shore Hardness Comparison Chart

Hardness

Application

30 Shore A

Art gum erasers

35 Shore A

Rubber bands

40 Shore A

Can tester pads

50 Shore A

Rubber stamps

55 Shore A

Pencil erasers

60 Shore A

Screen wiper blades

65 Shore A

Automotive Tires

70 Shore A

Shoe heels

75 Shore A

Abrasive handling pads

80 Shore A

Shoe Soles

85 Shore A

Tap washers

90 Shore A

Typewriter rollers

95 Shore A

Forklift solid tires

60 Shore D

Golf ball

70 Shore D

Metal forming wiper dies

80 Shore D

Paper-making rolls

General Usage Instructional Videos

USE THESE THEORETICAL FACTORS THAT RELATES TO ANY UNDILUTED EPOXY RESIN AS A GUIDE:

 

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

EPOXY RESIN MIXING AND USAGE APPLICATIONS

The use of a weighing scale is highly recommended for proportioning the 2:1 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.

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

Please request a total before paying for combined shipping savings.

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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 an 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. Poor mixing will cause tacky or uncured spots.

EVIDENCE OF POOR MIXING

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PROPER MIXING PROCEDURE

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

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 AIR BUBBLE REMOVAL TECHNIQUE

HOW TO REMOVE AIR BUBBLES EFFICIENTLY

AVOIDING RUN-AWAY REACTIONS

AVOIDING EXOTHERMIC RUN AWAY REACTION

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ADDING COLOR WITH

MAX COLOR PIGMENT CONCENTRATES

These are color concentrates only and must be dispersed an epoxy resin or PART A component.

These color concentrates are used to blend in with MAX GPE COLORED EPOXY SYSTEM to attain other colors or to intensify color opacity.

Color Pigment Addition  Procedure

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MAX COLOR KIT https://www.ebay.com/itm/311946633043

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”.  Thus, 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

Testing And Preparing Surface Before Applying Epoxy Coating Or Adhesive. - YouTube

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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.

  

DON'T FORGET OUR EPOXY MIXING KIT
EVERYTHING YOU NEED TO MEASURE, MIX, DISPENSE OR APPLY 
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Proportioning the correct amount is equally as important to attain the intended cured properties of the resin system. The 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.