CHT Group QM 2125 QSI Quantum Silicones 25 Durometer Condensation Cure Moldmaking Material

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CHT Group QM 2125 QSI Quantum Silicones 25 Durometer Condensation Cure Moldmaking Material
Categories:	Polymer; Thermoset; Silicone
Material Notes:	QM 2125 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. A variety of catalysts are offered with this material. Key Features: Low specific gravity Low viscosity High tear strength Long work-life Fast demold time Excellent dimensional stability Main Applications: Molds for large and small statues Molds for polyester, polyurethane and epoxy resin castings Molds for technical articles and prototype Molds for furniture and picture frame replication Molds for GFRC pre-cast Formerly Amber Chemical Co (ACC Silicones), aquired by CHT in 2017
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Physical Properties	Metric	English	Comments

Specific Gravity	1.00 g/cc	1.00 g/cc	Uncatalyzed, Moldmaster Green
	1.00 g/cc	1.00 g/cc	Uncatalyzed, Moldmaster Blue
	1.00 g/cc	1.00 g/cc	Uncatalyzed, Moldmaster Red
	1.13 g/cc	1.13 g/cc	catalyzed with Moldmaster Green
	1.13 g/cc	1.13 g/cc	catalyzed with Moldmaster Blue
	1.13 g/cc	1.13 g/cc	catalyzed with Moldmaster Red
	1.13 g/cc	1.13 g/cc	catalyzed with Moldmaster Purples
	1.16 g/cc	1.16 g/cc	Uncatalyzed, Moldmaster Purple
Viscosity	100 cP	100 cP	Uncatalyzed, Moldmaster Green
	150 cP	150 cP	Uncatalyzed, Moldmaster Blue
	150 cP	150 cP	Uncatalyzed, Moldmaster Red
	150 cP	150 cP	Uncatalyzed, Moldmaster Purple
	28000 cP	28000 cP	catalyzed with Moldmaster Green
	28000 cP	28000 cP	catalyzed with Moldmaster Blue
	28000 cP	28000 cP	catalyzed with Moldmaster Red
	28000 cP	28000 cP	catalyzed with Moldmaster Purple
	35000 cP	35000 cP	Base
Linear Mold Shrinkage	<= 0.0025 cm/cm	<= 0.0025 in/in	cured 72 hrs @ RT
Storage Temperature	<= 38.0 °C	<= 100 °F	6 months

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	23	23	cured 72 hrs @ RT
Tensile Strength	3.40 MPa	493 psi	cured 72 hrs @ RT
Elongation at Break	500 %	500 %	cured 72 hrs @ RT
Tear Strength	22.8 kN/m	130 pli	B, cured 72 hrs @ RT

Processing Properties	Metric	English	Comments
Cure Time	200 - 400 min	4 - 6 hour	Demold time, catalyzed with Moldmaster Red
	240 - 360 min	4.00 - 6.00 hour	Demold time, catalyzed with Moldmaster Blue
	480 - 600 min	8.00 - 10.0 hour	Demold time, catalyzed with Moldmaster Green
	500 - 600 min	8 - 10 hour	Demold time, catalyzed with Moldmaster Purple
Tack-Free Time	120 - 240 min	2.00 - 4.00 hour	Catalyzed with Moldmaster Red
	120 - 240 min	2.00 - 4.00 hour	Catalyzed with Moldmaster Blue
	240 - 360 min	4.00 - 6.00 hour	Catalyzed with Moldmaster Purple
	240 - 360 min	4.00 - 6.00 hour	Catalyzed with Moldmaster Green
Pot Life	30.0 min	30.0 min	catalyzed with Moldmaster Blue
	30.0 min	30.0 min	catalyzed with Moldmaster Red
	60.0 min	60.0 min	catalyzed with Moldmaster Purple
	60.0 min	60.0 min	catalyzed with Moldmaster Green

Descriptive Properties
Color	Beige		Base
	Blue		Uncatalyzed, Moldmaster Blue
	Dark Purple		catalyzed with Moldmaster Purple
	Green		Uncatalyzed, Moldmaster Green
	Light Blue		catalyzed with Moldmaster Blue
	Light Green		catalyzed with Moldmaster Green
	Light Red		catalyzed with Moldmaster Red
	Purple		Uncatalyzed, Moldmaster Purple
	Red		Uncatalyzed, Moldmaster Red

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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