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EpoxAcast™ 650 BLACK + 101 Hardener

EZ-Spray® Silicone 22 vs. EpoxAcast™ 650 BLACK + 101 HardenerEZ-Spray® Silicone 22

Mineral filled general purpose casting epoxy

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy Casting and Laminating Resins
Mixed Viscosity11,000 cps7,000 cps
Mix Ratio By Volume1A:1BN/A (gram scale required)
Pot Life5 minutes20 minutes
Cure Time45 minutes1 hour
Barcol 935 Hardness93
Shore A Hardness22
Specific Volume25.6 cu. in./lb.18.22 cu. in./lb.
ColorTranslucent GreenBlack
Disclaimer
Although we do our best to ensure the accuracy of this Compare Tool, Smooth-On offers no warranty either expressed or implied as to the reliability of the information contained herein. Smooth-On assumes no liability for loss or damage associated with use of the Compare Tool. If this is a critical project, we encourage you to review all of the technical data below and contact our Technical Service department with any questions or concerns.

All Technical Data

EZ-Spray® Silicone 22EpoxAcast™ 650 BLACK + 101 Hardener
Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy Casting and Laminating Resins
Mixed Viscosity11,000 cps7,000 cps
Mix Ratio By Volume1A:1B
Mix Ratio By Weight100A:12B
Pot Life5 minutes20 minutes
Cure Time45 minutes1 hour
Barcol 935 Hardness93
Shore A Hardness22
Specific Gravity1.08 g/cc1.52 g/cc
Specific Volume25.6 cu. in./lb.18.22 cu. in./lb.
ColorTranslucent GreenBlack
Die B Tear Strength102 pli
Tensile Strength490 psi
Tensile Modulus1,503,000 psi
Ultimate Tensile6,000 psi
Elongation @ Break450 %
100% Modulus49 psi
Compressive Strength16,350 psi
Compressive Modulus142,600 psi
Flexural Strength5,890 psi
Flexural Modulus710,000 psi
Shrinkage<.001 in. / in.0.001 in. / in.
Heat Deflection Temp129 °F
Useful Temperature (min)-65 °F
Useful Temperature (max)500 °F

Product Description

EZ-Spray® Silicone 22

EZ~Spray® Silicone 22 are sprayable silicones which cure quickly to soft rubbers with high elongation and tear strength. Liquid silicone is sprayed through the EZ~Spray® Junior Cartridge System which is an economical alternative to expensive spray equipment. After a suitable thickness is attained, EZ~Spray® Silicone 22 cures in about 45 minutes. EZ~Spray® Silicone cures with negligible shrinkage to strong, durable silicone rubbers good for production casting of polyester, epoxy or urethane resins, gypsum, concrete and other materials.

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EpoxAcast™ 650 BLACK + 101 Hardener

EpoxAcast™ 650 BLACK is a mineral filled general purpose casting epoxies that is low cost and versatile. It features a low mixed viscosity for minimal bubble entrapment. Choose Fast, Medium or Slow catalyst to fit your project. You can also use HT Hardener to give your castings higher heat resistance. EpoxAcast™ 650 BLACK are used for making hard dies for metal stamping as well as patterns and fixtures. They are also used for electrical encapsulation to extend the life cycles and enhance the performance of potted electronic devices. The high compressive strength of EpoxAcast™ 650 BLACK makes it ideal for making stamping dies for production pressing of metal ornaments.

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