CHT Group QM 135 QSI Quantum Silicones 35 Durometer Condensation Cured Moldmaking Material

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CHT Group QM 135 QSI Quantum Silicones 35 Durometer Condensation Cured Moldmaking Material
Categories:	Polymer; Thermoset; Silicone
Material Notes:	QM 135 is a two-component, room temperature condensation cure silicone material. The cured rubber has excellent mechanical properties and good shelf-life stability. This material is an excellent choice for the molding of intricate patterns, skin molding and applications where high durometer, dimensional stability and extremely tough rubber are required. Key Features: Low viscosity High tear strength Fast demold time Excellent dimensional stability Main Applications: Molds for small statues and large statues Molds for polyester, polyurethane and epoxy resin castings 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	1.03 g/cc	Uncatalyzed, QM CAT 135
	1.16 g/cc	catalyzed with QM CAT 135
Viscosity	150 cP	Uncatalyzed, QM CAT 135
	31000 cP	catalyzed with QM CAT 135
	45000 cP	Base
Linear Mold Shrinkage	<= 0.0030 cm/cm	cured 72 hrs @ RT
Storage Temperature	<= 38.0 °C	6 months

Mechanical Properties	Original Value	Comments
Hardness, Shore A	35	cured 72 hrs @ RT
Tensile Strength	3.40 MPa	cured 72 hrs @ RT
Elongation at Break	400 %	cured 72 hrs @ RT
Tear Strength	150 pli	cured 72 hrs @ RT

Processing Properties	Original Value	Comments
Cure Time	12 - 16 hour	Demold time, catalyzed with QM CAT 135
Tack-Free Time	4.00 - 6.00 hour	Catalyzed with QM CAT 135

Descriptive Properties
Color	Beige	Base
	Light Purple	catalyzed with QM CAT 135
	Purple	Uncatalyzed, QM CAT 135

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