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Master Bond adhesives

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Elkem (Bluestar Silicones) BLUESIL™ GP 25 Hi-Pro Blue Silicone Rubber
Categories: Polymer; Thermoset; Silicone; Silicone Rubber

Material Notes: Description: BLUESIL™ GP 25 is a general purpose, 25DSA, two component, tin catalyzed, room temperature curing silicone elastomer. It is designed as a medium viscosity, medium strength elastomer with good cured rubber properties, long library life and accurate detail reproduction.

Applications:

  • Figurine and giftware casting using Polyester, Urethane, and Plaster materials
  • Conventional Prototype tooling
  • Stereolithography, prototype tolling

Information provided by Bluestar Silicones

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.16 g/cc
Viscosity 50000 cPMixed
 60000 cPPart A, Base Component
Linear Mold Shrinkage 0.0030 cm/cm
@Time 86400 sec
 0.0040 cm/cm
@Time 25200 sec
Storage Temperature 24.0 °C
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore A 26ASTM D2240
Tensile Strength 580 psiASTM D412
Elongation at Break 370 %ASTM D412
Tear Strength 115 pliASTM D624, Die B
 
Thermal PropertiesOriginal ValueComments
Maximum Service Temperature, Air 150 °C
Minimum Service Temperature, Air -50.0 °C
 
Processing PropertiesOriginal ValueComments
Cure Time 168 hour
@Temperature 24.0 °C
50% RH
Shelf Life 12.0 Month
 
Descriptive Properties
ColorWhitePart A, Base Component
Mix Ratio10:1A:B

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