CHT Group QM 263 60 Shore A, Inhibition Resistant, Addition Cure Moldmaking Material

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CHT Group QM 263 60 Shore A, Inhibition Resistant, Addition Cure Moldmaking Material
Categories:	Polymer; Thermoset; Silicone
Material Notes:	Product Description: QM 263 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. Key Features: High durometer Casting resin resistance Fast demold time Excellent dimensional stability Main Applications: Molds for architectural application Molds for polyester, epoxy resin casting, and rigid or foam polyurethane 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	Metric	English	Comments

Specific Gravity	1.01 g/cc	1.01 g/cc	QM 263B, Uncatalyzed
	1.32 g/cc	1.32 g/cc	QM 263A, Uncatalyzed
Viscosity	850 cP	850 cP	QM 263B, Uncatalyzed
	60000 cP	60000 cP	Catalyzed
	116000 cP	116000 cP	QM 263A, Uncatalyzed
Linear Mold Shrinkage	<= 0.0010 cm/cm	<= 0.0010 in/in	Cured 3 days at 150°C

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	66	66	Cured 3 days at 150°C
Tensile Strength	6.21 MPa	900 psi	Cured 3 days at 150°C
Elongation at Break	180 %	180 %	Cured 3 days at 150°C
Tear Strength	19.3 kN/m	110 pli	Cured 3 days at 150°C

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	204 °C	399 °F	Cured 3 days at 150°C
Minimum Service Temperature, Air	-55.0 °C	-67.0 °F	Cured 3 days at 150°C

Processing Properties	Metric	English	Comments
Cure Time	480 - 720 min	8.00 - 12.0 hour	Demold time, Catalyzed
	4320 min @Temperature 25.0 °C	72.0 hour @Temperature 77.0 °F
Pot Life	65.0 min	65.0 min	Catalyzed

Descriptive Properties
Color	Beige		QM 263A, Uncatalyzed
	Blue		QM 263B, Uncatalyzed
	Light Blue		Catalyzed

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PACC2056 / 199444

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