CHT ALPA-SIL EXTRA Silicone Molding Rubber

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CHT ALPA-SIL EXTRA Silicone Molding Rubber
Categories:	Polymer; Thermoset; Silicone; Silicone Rubber
Material Notes:	Description: This is a pourable 2-part addition cure silicone elastomer system. After mixing parts ‘A’ and ‘B’ in the correct proportions, the system will cure at ambient temperatures within 24 hours, but the rate of cure can be accelerated by heat. The cured rubber exhibits excellent physical and electrical properties. Key Features Crosslinks at temperatures higher than 23 °C/77°F Easy mixing of the components Easy processing The mix is easy to pour and deaerates very well Application: Dental & mould making Information provided by CHT Group
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Physical Properties	Original Value	Comments

Density	1.10 g/cc	A; BS ISO 2781
	1.10 g/cc	B; BS ISO 2781
Brookfield Viscosity	2700 cP	B
	3500 cP	Mixed
	4200 cP	A
Linear Mold Shrinkage	<= 0.0010 cm/cm
Storage Temperature	<= 30.0 °C

Mechanical Properties	Original Value	Comments
Hardness, Shore A	18 - 21	DIN 53 505
Tensile Strength	341 psi	ISO 37
Elongation at Break	261 %	ISO 37
Tear Strength	26.0 pli	BS ISO 34-1

Processing Properties	Original Value	Comments
Cure Time	0.500 hour	De-mould Time / Full Cure
Pot Life	7.00 min
Shelf Life	12.0 Month

Descriptive Properties
Appearance	Blue
Color	Blue or translucent	Cured Product
	translucent	A
Cure type	Addition
Mix Ratio	10:1	By Weight

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PCHTSIL107 / 314590

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