Polytek PlatSil® 73-15 Silicone Rubber

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Polytek PlatSil® 73-15 Silicone Rubber
Categories:	Polymer; Thermoset; Silicone; Silicone Rubber
Material Notes:	Description: PlatSil® 71 & 73-Series Silicone Rubbers are twocomponent, room temperature curing (RTV) systems that cure to flexible, high-strength rubbers. These platinum-cured (or additioncured) systems can be used to make flexible molds or parts that offer excellent release properties, good chemical resistance, and high dimensional stability. PlatSil® molds offer long library life and are a good choice for casting resin (polyurethane, polyester, epoxy), polyurethane rubber and foam, wax, plaster and concrete. Polytek offers additives to vary viscosity and cure time of the liquid rubber, as well as hardness and color of the cured rubber. Product Line Features: Two-part, platinum-cured (addition-cured) silicone rubbers Room temperature curing (RTV) Range of hardness from A10 to A60 Reproduces fine details Low shrinkage upon cure; high dimensional stability Release agents not required for casting many materials in PlatSil® molds Cured molds have long library life Thicken with liquid thickener for brush-on application Information provided by Polytek
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Physical Properties	Original Value	Comments

Specific Gravity	1.10 g/cc
Viscosity	2500 cP	Mixed

Mechanical Properties	Original Value	Comments
Hardness, Shore A	15
Tensile Strength	265 psi
Elongation at Break	640 %
Tear Strength	17.0 pli	Die T
	55.0 pli	Die B

Processing Properties	Original Value	Comments
Cure Time	4.00 - 5.00 hour	Demold Time
	20.0 min	Pour Time
	48.0 hour	Total Cure

Descriptive Properties
Cured Color	White Translucent
Mix Ratio By Weight	1A:1B
Part A Color	White
Part B Color	White
Specific Volume	25 in3/lb

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PPTK5001 / 250993

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