Silpak R-1348 Firm Tin RTV Silicone System

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Silpak R-1348 Firm Tin RTV Silicone System
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	R-1348 is a 40 Shore A, Tin Base (condensation cure), two-component, room temperature cure (RTV) rubber designed for general purpose applications where a low shrink, firm rubber mold or part is required. Its consistent curing characteristics, excellent shelf life, and outstanding physical properties make it a product that can easily meet a wide variety of applications. Use to cast foam, polyester, urethane, epoxy, low melt metal (350°F), thermoplastics (polyvinyl), wax, soap, plaster, and any material where a release free casting is required. Features: Extra firmness for casting urethane foam parts Excellent physical properties with high tear resistance Good polyester and urethane resin resistance Applications: Use to molds cast foam, polyester, urethane, epoxy, low melt metal (350°F), thermoplastics (polyvinyl), wax, soap, plaster, and any material where a release free casting is required. Production molds Information provided by Silpak a division of Polytek Development Corp.
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Physical Properties	Original Value	Comments

Specific Gravity	1.15 g/cc
Viscosity	50 cP	Initial Activator
	40000 cP	Initial Mixed
	45000 cP	Initial Base
Storage Temperature	64.0 - 86.0 °F

Mechanical Properties	Original Value	Comments
Hardness, Shore A	40
Tensile Strength	500 psi
Elongation at Break	350 %
Tear Strength	170 pli

Processing Properties	Original Value	Comments
Cure Time	8.00 - 10.0 hour
Pot Life	60.0 min
Shelf Life	6.00 Month

Descriptive Properties
Color	Off-White Base; Orange Activator
Mix Ratio	100 Base:5 Activator	by weight

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PSILPAK018 / 318655

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