CHT Group QM 118 QSI Quantum Silicones 18 Durometer Condensation Cured Moldmaking Material

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CHT Group QM 118 QSI Quantum Silicones 18 Durometer Condensation Cured Moldmaking Material
Categories:	Polymer; Thermoset; Silicone
Material Notes:	QM 107 is a two component, room temperature condensation cure silicone material. The cured rubber is very soft, has excellent mechanical properties and good shelf-life stability. This material is an excellent choice for the molding of intricate patterns, skin molding or for applications which demand a tough rubber. The hardness of QM 118 is the midpoint of the QM100 series and therefore offers excellent physical properties. A variety of catalysts are offered with this material. Key Features: Low Viscosity Excellent physical properties Fast demold time Main Applications: Molds for small statues, large statues and monument restoration Molds for polyester, polyurethane and epoxy resin castings Molds for prototypes Formerly Amber Chemical Co (ACC Silicones), aquired by CHT in 2017
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Physical Properties	Original Value	Comments

Specific Gravity	0.950 g/cc	Uncatalyzed, QM CAT RED 3
	1.00 g/cc	Uncatalyzed, QM CAT PURPLE
	1.03 g/cc	Uncatalyzed, QM CAT BLUE
	1.24 g/cc	catalyzed with QM CAT PURPLE
	1.24 g/cc	catalyzed with QM CAT RED 3
	1.24 g/cc	catalyzed with QM CAT BLUE
	1.28 g/cc	Base
Viscosity	100 cP	Uncatalyzed, QM CAT PURPLE
	100 cP	Uncatalyzed, QM CAT BLUE
	100 cP	Uncatalyzed, QM CAT RED 3
	13500 cP	catalyzed with QM CAT RED 3
	13500 cP	catalyzed with QM CAT BLUE
	13500 cP	catalyzed with QM CAT PURPLE
	20000 cP	Base
Linear Mold Shrinkage	<= 0.0030 cm/cm @Temperature 25.0 °C, Time 259000 sec	Cured
Storage Temperature	<= 38.0 °C	6 months

Mechanical Properties	Original Value	Comments
Hardness, Shore A	18	cured for 72 hrs @ RT
Tensile Strength	2.90 MPa	cured for 72 hrs @ RT
Elongation at Break	500 %	cured for 72 hrs @ RT
Tear Strength	115 pli	cured for 72 hrs @ RT

Processing Properties	Original Value	Comments
Cure Time	4 - 6 hour	Demold time, catalyzed with QM CAT RED 3
	12 - 16 hour	Demold time, catalyzed with QM CAT PURPLE
	16 - 24 hour	Demold time, catalyzed with QM CAT BLUE
Tack-Free Time	0.750 - 1.00 hour	Catalyzed with QM CAT RED 3
	4.00 - 6.00 hour	Catalyzed with QM CAT PURPLE
	6.00 - 8.00 hour	Catalyzed with QM cat BLUE
Pot Life	7.00 min	catalyzed with QM CAT RED 3
	25.0 min	catalyzed with QM CAT PURPLE
	45.0 min	catalyzed with QM CAT BLUE

Descriptive Properties
Color	Beige	Base
	Blue	Uncatalyzed, QM CAT BLUE
	Light Blue	catalyzed with QM CAT BLUE
	Light Purple	catalyzed with QM CAT PURPLE
	Light Red	catalyzed with QM CAT RED 3
	Purple	Uncatalyzed, QM CAT PURPLE
	Red	Uncatalyzed, QM CAT RED 3

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 go back to viewing the property data in MatWeb's normal format.

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