Mold Star® 30 Datasheet

Silicone

Supplied by Smooth-On, Inc

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Product Description
Mold Star® rubbers are easy to use platinum silicones which are mixed 1A:1B by volume (no weighing scale necessary). Mold Star® silicones feature relatively low viscosities and vacuum degassing is not required for most applications. The pot life of Mold Star® 15 SLOW is 50 minutes and cure time is 4 hours at room temperature. Mold Star® 16 FAST is a faster material with a 6 minute pot life and 30 minute cure time. Mold Star® 30 is a harder material, with a 30A Shore hardness

Mold Star® silicones cure to soft, strong rubbers which are tear resistant and exhibit very low long term shrinkage. Molds made with Mold Star® will last a long time in your mold library and are good for casting wax, gypsum, resins, concrete and other materials. Cured Mold Star® rubber is heat resistant up to 450°F (232°C) and is suitable for casting low-temperature melt metal alloys. Note: Mold Star® rubbers are not intended for brush-on moldmaking.
General  
Material Status 
  • Commercial: Active
Availability 
  • Africa & Middle East
  • Asia Pacific
  • Europe
  • Latin America
  • North America
Features 
  • Good Strength
  • Good Tear Strength
  • Low Shrinkage
  • Low Viscosity
  • Soft
Uses 
  • Mold Making
Appearance 
  • Blue
Processing Method 
  • Casting
Physical
Nominal Value
Unit
Test Method
Density / Specific Gravity
 
ASTM D1475
Specific Volume
in³/lb
ASTM D1475
Molding Shrinkage - Flow
in/in
ASTM D2566
Elastomers
Nominal Value
Unit
Test Method
Tensile Stress (100% Strain)
psi
ASTM D412
Tensile Strength (Break)
psi
ASTM D412
Tensile Elongation (Break)
%
ASTM D412
Tear Strength 2
lbf/in
ASTM D624
Hardness
Nominal Value
Unit
Test Method
Durometer Hardness (Shore A)
 
ASTM D2240
Thermal
Nominal Value
Unit
Test Method
Service Temperature
°F
 
Thermoset
Nominal Value
Unit
Test Method
Thermoset Components
     
Part A
 
 
Part B
 
 
Pot Life
min
ASTM D2471
Thermoset Mix Viscosity
cP
ASTM D2393
Additional Information
Nominal Value
Unit
Test Method
Cure Time
hr
 
Features
Features may also be described by the following terms: Low Viscosity, Low Shrinkage, Good Strength, Good Tear Strength.
Available Documents
Technical Datasheet (English)
Notes
1Typical properties: these are not to be construed as specifications.
2Die B
 
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