Silpak R-1318 Tin RTV Silicone System

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Silpak R-1318 Tin RTV Silicone System
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	R-1318 is a 15 A Shore Tin Base (condensation cure), two-component, room temperature cure (RTV) rubber designed with high elongation and flexibility properties for making molds of parts with undercuts. It is also used as a general purpose, high strength rubber used for soft rubber parts. Features: Produces mold with high elongation and flexibility for heavy undercuts Excellent physical properties with high tear resistance Produces molds with long working life Applications: Use molds to cast 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 Production parts Information provided by Silpak a division of Polytek Development Corp.
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Physical Properties	Original Value	Comments

Specific Gravity	1.18 g/cc
Viscosity	50 cP	Initial, Part B
	12000 cP	Initial Mixed
	20000 cP	Initial, Part A
Storage Temperature	64.0 - 86.0 °F

Mechanical Properties	Original Value	Comments
Hardness, Shore A	15
Tensile Strength	260 psi
Elongation at Break	550 %
Tear Strength	96.0 pli

Processing Properties	Original Value	Comments
Cure Time	15.0 - 25.0 hour	Demold
Pot Life	60.0 min
Shelf Life	6.00 Month

Descriptive Properties
Color	White Base / Green Activator
Mix Ratio	100 Base : 10 Activator	by weight

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PSILPAK016 / 318653

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