CHT Group QM 262 QSI Quantum Silicones 60 Durometer Addition Cure Moldmaking Material

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CHT Group QM 262 QSI Quantum Silicones 60 Durometer Addition Cure Moldmaking Material
Categories:	Polymer; Thermoset; Silicone
Material Notes:	QM262 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 and architectural materials. QM262 is exceptionally good where high durometer and dimensional stability are required. Key Features: High Durometer Low Viscosity Casting resin resistance Fast demold time Excellent dimensional stability Main Applications: Molds for architectural replication Molds for polyester, epoxy resin casting Molds for technical articles and prototype 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	1.02 g/cc	Uncatalyzed, QM 262B
	1.26 g/cc	Base
Viscosity	2000 cP	Uncatalyzed, QM 262B
	35000 cP	catalyzed with QM 262B
	45000 cP	Base
Linear Mold Shrinkage	0.0010 cm/cm	cured 72 hrs @ RT
Storage Temperature	<= 38.0 °C	12 months

Mechanical Properties	Original Value	Comments
Hardness, Shore A	60	cured 72 hrs @ RT
Tensile Strength	6.89 MPa	cured 72 hrs @ RT
Elongation at Break	150 %	cured 72 hrs @ RT
Tear Strength	90.0 pli	cured 72 hrs @ RT

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	204 °C
Minimum Service Temperature, Air	-55.0 °C

Processing Properties	Original Value	Comments
Cure Time	8 - 12 hour	Demold time, catalyzed with QM 262B
Pot Life	60.0 min	catalyzed with QM 262B

Descriptive Properties
Color	Beige	Base
	Blue	catalyzed with QM 262B
	Light Blue	Uncatalyzed, QM 262B

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PACC068 / 22195

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