Compare Tool

remove

Ecoflex™ 5

Ecoflex™ 5 vs. PMC®-744 vs. EpoxAcast™ 650 + 102 Hardener

Super-Soft, Addition Cure Silicone Rubber

 View Product

Vs.
remove

EpoxAcast™ 650 + 102 Hardener

Ecoflex™ 5 vs. PMC®-744 vs. EpoxAcast™ 650 + 102 HardenerEcoflex™ 5

Mineral Filled General Purpose Casting Epoxy

 View Product

Vs.
remove

PMC®-744

Ecoflex™ 5 vs. PMC®-744 vs. EpoxAcast™ 650 + 102 HardenerEcoflex™ 5 versus EpoxAcast™ 650 + 102 Hardener

Polyurethane Rubber Compound

 View Product

Add Material to Compare

start over

Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy Casting and Laminating Resins
  • Urethane Rubber
Mixed Viscosity13,000 cps7,000 cps3,400 cps
Mix Ratio By Volume1A:1BN/A (gram scale required)2A:1B
Pot Life1 minute90 minutes15 minutes
Cure Time5 minutes4 hours16 hours
Barcol 935 Hardness93
Shore A Hardness544
Specific Volume25.8 cu. in./lb.18.22 cu. in./lb.27.5 cu. in./lb.
ColorTranslucentOff WhiteBeige
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

Ecoflex™ 5EpoxAcast™ 650 + 102 HardenerPMC®-744
Product Type
  • Silicone Rubber - Platinum Cure
  • Epoxy Casting and Laminating Resins
  • Urethane Rubber
Mixed Viscosity13,000 cps7,000 cps3,400 cps
Mix Ratio By Volume1A:1B2A:1B
Mix Ratio By Weight1A:1B100A:13B2A:1B
Pot Life1 minute90 minutes15 minutes
Cure Time5 minutes4 hours16 hours
Barcol 935 Hardness93
Shore A Hardness544
Specific Gravity1.07 g/cc1.52 g/cc1.01 g/cc
Specific Volume25.8 cu. in./lb.18.22 cu. in./lb.27.5 cu. in./lb.
ColorTranslucentOff WhiteBeige
Die B Tear Strength75 pli
Die C Tear Strength90 pli
Tensile Strength350 psi300 psi
Tensile Modulus1,503,000 psi
Ultimate Tensile6,000 psi
Elongation @ Break1,000 %400 %
100% Modulus15 psi90 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.< .001 in. / in.
Heat Deflection Temp129 °F
Useful Temperature (min)-65 °F
Useful Temperature (max)450 °F

Product Description

Ecoflex™ 5

Ecoflex™ rubbers are platinum-catalyzed silicones that are versatile and easy to use. Ecoflex™ rubbers are mixed 1A:1B by weight or volume and cured at room temperature with negligible shrinkage.  Low viscosity ensures easy mixing and de-airing. Dispense using our convenient dispensing cartridges. Cured rubber is very soft, very strong and very “stretchy”, stretching many times its original size without tearing and will rebound to its original form without distortion.

Read More

EpoxAcast™ 650 + 102 Hardener

EpoxAcast™ 650 is a mineral filled general purpose casting epoxy that is low cost and versatile. It features a low mixed viscosity for minimal bubble entrapment.

Read More

PMC®-744

PMC®-744 has been used for years by mold making professionals to cast plaster, concrete, resins, etc. It is excellent for making molds that are strong, durable and dimensionally stable. Low viscosity ensures fine detail reproduction.

Read More

Select a Material from a Category Below

Silicone Rubber - Tin Cure ›

Silicone Rubber - Platinum Cure ›

Urethane Rubber ›

Polysulfide Rubber ›

Urethane Resins ›

Epoxy Casting and Laminating Resins ›

Epoxy Putties ›

Epoxy and Urethane Coatings ›

Mix and Pour Expanding Foams ›

Adhesives ›

Lifecasting Materials ›

Skin Safe FX Materials ›

Polymer Modifiers for Concrete and Gypsum ›