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MT-13®

EZ-Spray® Silicone 22 vs. EZ-Spray® Foam vs. MT-13®EZ-Spray® Silicone 22 versus EZ-Spray® Foam

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Mix and Pour Expanding Foams
  • Adhesives
Mixed Viscosity11,000 cps400 cpsLight Paste
Pot Life5 minutes13 seconds35 minutes
Cure Time45 minutes10 minutes16 hours
Barcol 935 Hardness72
Shore A Hardness22
Specific Gravity1.08 g/cc0.128 g/cc1.37 g/cc
ColorTranslucent GreenTanWhite
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 22EZ-Spray® FoamMT-13®
Product Type
  • Silicone Rubber - Platinum Cure
  • Mix and Pour Expanding Foams
  • Adhesives
Mixed Viscosity11,000 cps400 cpsLight Paste
Mix Ratio By Volume1A:1B1A:1B1A:1B
Mix Ratio By Weight100A:123B
Pot Life5 minutes13 seconds35 minutes
Tack Free Time2 minutes
Cure Time45 minutes10 minutes16 hours
Barcol 935 Hardness72
Shore A Hardness22
Expansion (approximate)7 times
Specific Gravity1.08 g/cc0.128 g/cc1.37 g/cc
Specific Volume25.6 cu. in./lb.
ColorTranslucent GreenTanWhite
Die B Tear Strength102 pli
Tensile Strength490 psi4,300 psi
Tensile Modulus285,000 psi
Elongation @ Break450 %0.8 %
100% Modulus49 psi
Compressive Strength8,700 psi
Compressive Modulus165,000 psi
Shrinkage<.001 in. / in.
Useful Temperature (min)-65 °F
Useful Temperature (max)500 °F
Sag Resistance1/16 in.

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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EZ-Spray® Foam

EZ~Spray® Foam is a polyurethane foam compound that can be conveniently sprayed using Smooth-On’s EZ~Spray® Junior System. Foam cures quickly to strong, lightweight and impact resistant 8 lb. rigid foam that can be used for a variety of applications including making lightweight castings. Foam can also be sprayed over certain rubber mold configurations as a mother mold material. For more information, refer to SmoothOn’s EZ~Spray® Junior manual and video.

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MT-13®

Smooth-On MT-13® is a premium performance epoxy for applications requiring maximum holding power and water resistance. MT-13® is a two component epoxy adhesive cement which is mixed in equal parts by volume (100A/123B by weight) Pot Life is 35 minutes and handling strength develops in 16 hours at 73° F / 23° C. MT-13® adheres extremely well to both porous and non-porous surfaces. MT-13® is widely used by the boating industry for assembly and general repair. MT-13® also maintains holding power under extreme cold conditions.

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