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

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CHT Group QM 262F QSI Quantum Silicones 60 Durometer Addition Cure Moldmaking Material
Categories:	Polymer; Thermoset; Silicone
Material Notes:	QM 262F 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. QM 262F 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 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 262F B
	1.30 g/cc	Base
Viscosity	2000 cP	Uncatalyzed, QM 262F B
	35000 cP	catalyzed with QM 262F B
	55000 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	6.98 MPa	cured 72 hrs @ RT
Elongation at Break	140 %	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	3 - 5 hour	Demold time, catalyzed with QM 262F B
Pot Life	30.0 min	catalyzed with QM 262F B

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

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