CHT Group QM 140 QSI Quantum Silicones 40 Durometer Condensation Cured Moldmaking Material

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CHT Group QM 140 QSI Quantum Silicones 40 Durometer Condensation Cured Moldmaking Material
Categories:	Polymer; Thermoset; Silicone
Material Notes:	QM 140 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. Complies with FDA indirect food contact regulation CFR 177.2600 when used with Cat Clear FG. Refer to Cat Clear FG data sheet for specific properties. Key Features: Low viscosity High tear strength Fast demold time Excellent dimensional stability Main Applications: 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	Metric	English	Comments

Specific Gravity	1.03 g/cc	1.03 g/cc	Uncatalyzed, QM CAT 140
	1.13 g/cc	1.13 g/cc	catalyzed with QM CAT Clear FG
	1.16 g/cc	1.16 g/cc	Base
	1.31 g/cc	1.31 g/cc	catalyzed with QM CAT 140
Viscosity	250 cP	250 cP	Uncatalyzed, QM CAT 140
	3700 cP	3700 cP	catalyzed with QM CAT Clear FG
	37000 cP	37000 cP	catalyzed with QM CAT 140
	50000 cP	50000 cP	Base
Linear Mold Shrinkage	<= 0.0030 cm/cm	<= 0.0030 in/in	cured 72 hrs @ RT, w/ QM Cat 140
	<= 0.0030 cm/cm	<= 0.0030 in/in	cured 72 hrs @ RT, w/ QM Cat Clear FG
Storage Temperature	<= 38.0 °C	<= 100 °F	6 months

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	30	30	cured 72 hrs @ RT, w/ QM Cat Clear FG
	40	40	cured 72 hrs @ RT, w/ QM Cat 140
Tensile Strength	4.48 MPa	650 psi	cured 72 hrs @ RT, w/ QM Cat Clear FG
	4.50 MPa	653 psi	cured 72 hrs @ RT, w/ QM Cat 140
Elongation at Break	300 %	300 %	cured 72 hrs @ RT, w/ QM Cat 140
	530 %	530 %	cured 72 hrs @ RT, w/ QM Cat Clear FG
Tear Strength	28.0 kN/m	160 pli	B, cured 72 hrs @ RT, w/ QM Cat 140
	28.0 kN/m	160 pli	cured 72 hrs @ RT, w/ QM Cat Clear FG

Processing Properties	Metric	English	Comments
Cure Time	720 - 960 min	12 - 16 hour	Demold time, catalyzed with QM CAT 140
	720 - 960 min	12.0 - 16.0 hour	Demold time, catalyzed with QM CAT Clear FG
Tack-Free Time	240 - 360 min	4.00 - 6.00 hour	Catalyzed with QM CAT 140
	240 - 360 min	4.00 - 6.00 hour	Catalyzed with QM CAT Clear FG
Pot Life	45.0 min	45.0 min	catalyzed with QM CAT 140
	45.0 min	45.0 min	catalyzed with QM Clear FG

Compliance Properties	Metric	English	Comments
FDA	Yes	Yes

Descriptive Properties
Color	Beige		Base
	Beige		catalyzed with QM Clear FG
	Light Purple		catalyzed with QM CAT 140
	Purple		Uncatalyzed, QM CAT 140

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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PACC061 / 22188

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