CHT Group QM 247 45 Shore A, Addition Cure Moldmaking Material

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CHT Group QM 247 45 Shore A, Addition Cure Moldmaking Material
Categories:	Polymer; Thermoset; Silicone
Material Notes:	Product Description: QM 247 is a two-component, room temperature, addition cure, silicone material. The cured rubber has excellent mechanical properties and good shelf-life stability. This material is a good choice for the molding of furniture, picture frames and architectural materials. QM 247 is exceptionally good where highly detailed parts and mold flexibility are required. Key Features: Excellent tear resistance Casting resin resistance Fast demold time Good mold flexibility Main Applications: Rapid prototyping Molds for architectural replication Molds for polyester, epoxy, and rigid or foam polyurethane resin casting Molds for technical articles and prototypes Molds for furniture and picture frame replication Formerly Amber Chemical Co (ACC Silicones), aquired by CHT in 2017
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Physical Properties	Original Value	Comments

Specific Gravity	0.960 g/cc	QM 247B, Uncatalyzed
	1.34 g/cc	QM 247A, Uncatalyzed
Viscosity	2000 cP	QM 247B, Uncatalyzed
	30000 cP	Catalyzed
	50000 cP	QM 247A, Uncatalyzed
Linear Mold Shrinkage	<= 0.0010 cm/cm	Cured 3 days at 25°C

Mechanical Properties	Original Value	Comments
Hardness, Shore A	45	Cured 3 days at 25°C
Tensile Strength	400 psi	Cured 3 days at 25°C
Elongation at Break	400 %	Cured 3 days at 25°C

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	204 °C	Cured 3 days at 25°C
Minimum Service Temperature, Air	-55.0 °C	Cured 3 days at 25°C

Processing Properties	Original Value	Comments
Cure Time	6.00 - 8.00 hour	Demold time, Catalyzed
	72.0 hour @Temperature 25.0 °C
Pot Life	46.0 min	Catalyzed

Descriptive Properties
Color	Beige	QM 247A, Uncatalyzed
	Beige	Catalyzed
	Clear	QM 247B, Uncatalyzed

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PACC2051 / 199439

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