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PC-3®

TASK™ 5 vs. EZ-Spray® Silicone 22 vs. PC-3®EZ-Spray® Silicone 22

Laboratory Tabletop Epoxy Adhesive

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TASK™ 5

TASK™ 5 vs. EZ-Spray® Silicone 22 vs. PC-3®EZ-Spray® Silicone 22 versus PC-3®

Low Cost, High Performance

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Adhesives
  • Urethane Resins
Mixed Viscosity11,000 cpsPaste600 cps
Pot Life5 minutes20 minutes3 minutes
Cure Time45 minutes24 hours15 minutes
Barcol 935 Hardness75
Shore D Hardness77
Shore A Hardness22
Specific Volume25.6 cu. in./lb.20 cu. in./lb.25.2 cu. in./lb.
ColorTranslucent GreenBlackTan
Tensile Strength490 psi3,000 psi4,530 psi
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 22PC-3®TASK™ 5
Product Type
  • Silicone Rubber - Platinum Cure
  • Adhesives
  • Urethane Resins
Mixed Viscosity11,000 cpsPaste600 cps
Mix Ratio By Volume1A:1B1A:1B1A:1B
Mix Ratio By Weight1A:1B1A:1B
Pot Life5 minutes20 minutes3 minutes
Cure Time45 minutes24 hours15 minutes
Barcol 935 Hardness75
Shore D Hardness77
Shore A Hardness22
Specific Gravity1.08 g/cc1.4 g/cc1.1 g/cc
Specific Volume25.6 cu. in./lb.20 cu. in./lb.25.2 cu. in./lb.
ColorTranslucent GreenBlackTan
Die B Tear Strength102 pli
Tensile Strength490 psi3,000 psi4,530 psi
Tensile Modulus200,000 psi
Elongation @ Break450 %5 %
100% Modulus49 psi
Compressive Strength6,700 psi
Compressive Modulus83,000 psi
Flexural Strength5,000 psi6,480 psi
Flexural Modulus216,000 psi
Shrinkage<.001 in. / in.0.003 in. / in.0.007 in. / in.
Heat Deflection Temp145 °F
Useful Temperature (min)-65 °F
Useful Temperature (max)500 °F
Compressive Yield Strength5,000 psi

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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PC-3®

Smooth-On PC-3® Laboratory Table Top Cement is a two-component, black epoxy resin compound designed to join, bond and caulk sections of laboratory counters and tables. This epoxy resin cement is heavily filled and will adhere to vertical surfaces without sagging. It cures at room temperature with extremely low shrinkage.

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TASK™ 5

TASK™ 5 is a low cost, high performance casting resin, which yields castings that are tan and virtually bubble free. This resins offers superior physical and performance properties compared to our popular Smooth-Cast™ Series of general purpose casting resins. Vacuum degassing is not necessary and it offers the convenience of a 1A:1B by volume or weight mix ratio.

TASK™ 5 has a high tensile and flexural strength, as well as high flexural modulus. This plastic was formulated for a variety of industrial applications including pattern making and making prototype models. This resins was designed for casting in thicknesses up to ½” (1.27 cm).

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