CHT Group QM 264HT 60 Shore A, Addition Cure Moldmaking Material

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CHT Group QM 264HT 60 Shore A, Addition Cure Moldmaking Material
Categories:	Polymer; Thermoset; Silicone
Material Notes:	Product Description: QM 264HT is a two-component, room temperature, addition cure, silicone material. The cured rubber has excellent mechanical properties, good shelf-life stability, excellent physical properties and resin resistance. This material is a good choice for the molding of furniture, picture frames, architectural materials and rubber rollers and belting. QM 264HT is exceptionally good where high durometer and dimensional stability are required. Key Features: High durometer Casting resin resistance Fast demold time Excellent dimensional stability Main Applications: Molds for architectural replication Molds for polyester, epoxy resin casting, and rigid or foam polyurethane Molds for technical articles and prototypes Molds for furniture and picture frame replication Rubber rollers and belting Formerly Amber Chemical Co (ACC Silicones), aquired by CHT in 2017
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Physical Properties	Metric	English	Comments

Specific Gravity	1.04 g/cc	1.04 g/cc	QM 264HTB, Uncatalyzed
	1.28 g/cc	1.28 g/cc	QM 264HTA, Uncatalyzed
Viscosity	7000 cP	7000 cP	QM 264HTB, Uncatalyzed
	110000 cP	110000 cP	Catalyzed
	150000 cP	150000 cP	QM 264HTA, Uncatalyzed
Linear Mold Shrinkage	<= 0.0010 cm/cm	<= 0.0010 in/in	Cured 3 days at 25°C

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	53	53	Cured 3 days at 25°C
	63	63	Catalyzed, 30 minutes at 110°C
Tensile Strength	5.72 MPa	830 psi	Cured 3 days at 25°C
Elongation at Break	220 %	220 %	Cured 3 days at 25°C
Tear Strength	20.3 kN/m	116 pli	Cured 3 days at 25°C

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	204 °C	399 °F	Cured 3 days at 25°C
Minimum Service Temperature, Air	-55.0 °C	-67.0 °F	Cured 3 days at 25°C

Processing Properties	Metric	English	Comments
Cure Time	1080 min	18.0 hour	Demold time, Catalyzed
	30.0 min @Temperature 110 °C	0.500 hour @Temperature 230 °F	Catalyzed
	4320 min @Temperature 25.0 °C	72.0 hour @Temperature 77.0 °F
Pot Life	160 min	160 min	Catalyzed

Descriptive Properties
Color	Beige		QM 264HTA, Uncatalyzed
	Black		QM 264HTB, Uncatalyzed
	Dark Grey		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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PACC2057 / 199445

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