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Ecoflex™ 5

Ecoflex™ 5 vs. Skin Tite™ vs. Smooth-Cast® ONYX™ FAST

Super-Soft, Addition Cure Silicone Rubber

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Skin Tite™

Ecoflex™ 5 vs. Skin Tite™ vs. Smooth-Cast® ONYX™ FASTEcoflex™ 5 versus Smooth-Cast® ONYX™ FAST

Silicone Appliance Builder and Adhesive for Skin F/X

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Urethane Resins
  • Silicone Rubber - Platinum Cure
  • Skin Safe FX Materials
Mixed Viscosity13,000 cps100 cps23,000 cps
Pot Life1 minute2.5 minutes3 minutes
Cure Time5 minutes15 minutes5 minutes
Shore D Hardness80
Shore A Hardness5
ColorTranslucentBlackTranslucent Clear
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™ 5Smooth-Cast® ONYX™ FASTSkin Tite™
Product Type
  • Silicone Rubber - Platinum Cure
  • Urethane Resins
  • Silicone Rubber - Platinum Cure
  • Skin Safe FX Materials
Mixed Viscosity13,000 cps100 cps23,000 cps
Mix Ratio By Volume1A:1B100A:100B1A:1B
Mix Ratio By Weight1A:1B120A:100B1A:1B
Pot Life1 minute2.5 minutes3 minutes
Cure Time5 minutes15 minutes5 minutes
Shore D Hardness80
Shore A Hardness5
Specific Gravity1.07 g/cc1.09 g/cc1.07 g/cc
Specific Volume25.8 cu. in./lb.27.7 cu. in./lb.
ColorTranslucentBlackTranslucent Clear
Die B Tear Strength75 pli
Tensile Strength350 psi5,840 psi
Tensile Modulus246,000 psi
Elongation @ Break1,000 %4 %
100% Modulus15 psi
Compressive Strength8,760 psi
Compressive Modulus77,400 psi
Flexural Strength8,280 psi
Flexural Modulus246,000 psi
Shrinkage<.001 in. / in.0.010 in. / in.
Useful Temperature (min)-65 °F
Useful Temperature (max)450 °F
Heat Deflection With Post Cure250 °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.

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Smooth-Cast® ONYX™ FAST

Smooth-Cast® ONYX™ is a mercury-free urethane resin that cures at room temperature to a deep black, solid plastic. ONYX™ resins offer the convenience of a 1A:1B by volume mix ratio and have very low viscosities, so they are easy to mix and pour. ONYX™ resins have an ultimate Shore hardness of 80D and offer higher physical properties and higher heat resistance vs. other general purpose resins.ONYX™ FAST resin has a pot life of 2.5 minutes and a cure time of 10-15 minutes. ONYX™ FAST is a good choice for creating fast cold cast bronze, brass, copper, nickel/silver, etc. effects.

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Skin Tite™

Skin Tite™ is a skin safe silicone used to create fast wounds, scars and to adhere silicone appliances directly to the skin. It can be sculpted “on the fly”, offers maximum control and stays precisely where you put it. Skin Tite™ will adhere to the skin and perfectly conforms to all contours. Cured rubber is strong and will flex with body movement. Wounds and appliances will not come off until you remove them. Material is skin safe and certified by an independent laboratory.

An infinite variety of color effects are achieved using Silc Pig™ silicone pigments. Blended Silc Pig™ color pigments added to Skin Tite™ will create hyper-realistic cuts, scars, slash wounds, bruises, necrotic (dead skin) effects, bullet holes and more. Thi-vex™ thickener will thicken Skin Tite™ for even greater vertical hang control and is ideal for creating skin pockets, hanging skin, deep cuts & wounds, holes and more.

Bio-Adhesive: Skin Tite™ can also be used to adhere skin effects silicone appliances or silicone masks to the skin even when affixed to hard to hold areas such as elbows, fingers and joints. It is ideal for repetitive motion applications. Skin Tite™ will release from closely cropped hair-covered skin surfaces (short arm hair, beards, moustaches and eyebrows). 

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Select a Material from a Category Below

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