Reynolds EpoxAcast® 655; Hardener: HT High Temp Aluminum filled castable epoxy

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Reynolds EpoxAcast® 655; Hardener: HT High Temp Aluminum filled castable epoxy
Categories:	Polymer; Thermoset; Epoxy; Epoxy, Cast, Metal Filled
Material Notes:	Product Overview: EpoxAcast™ 655 (formerly Metalset™ A-30) is a versatile aluminum filled castable epoxy that is very hard and strong. It is dimensionally stable, even when mass cast up to 512 in3/ 8,390 cm3. Different hardener speed options are available depending on your project requirements. Maximum heat resistance is achieved using HT HIGH TEMP hardener (up to 225°F/108°C). Cured EpoxAcast™ 655 epoxy has high physical properties and is used for a variety of applications including making hard tooling, vacuum forming dies/molds, injection molds, foundry patterns, jigs and fixtures and metal forming dies. Depending on project requirements, Part A Base can be mixed with 101 FAST, 102 MEDIUM, 103 SLOW or HT HIGH TEMP hardeners. Information provided by Reynolds Advanced Materials
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Physical Properties	Metric	English	Comments

Specific Gravity	1.64 g/cc	1.64 g/cc	ASTM D-1475
Viscosity	12000 cP	12000 cP	Mixed; ASTM D-2393
Linear Mold Shrinkage	0.0010 cm/cm	0.0010 in/in	ASTM D-2566

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	90	90	ASTM D-2240
Tensile Strength, Ultimate	41.4 MPa	6000 psi	ASTM D-638
Elongation at Break	0.50 %	0.50 %	ASTM D-638
Tensile Modulus	49.6 GPa	7200 ksi	ASTM D-638
Compressive Strength	108 MPa	15700 psi	ASTM D-695
Compressive Modulus	1.86 GPa	270 ksi	ASTM D-695

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	108 °C	226 °F	Deflection Temp. Post cured per heat post curing schedule; ASTM D-648

Processing Properties	Metric	English	Comments
Cure Time	1440 min	24.0 hour	24 Hours followed by: Heat cure for 2 hrs. at 175°F/80°C, then 3 hrs. at 300°F/150°C.
Pot Life	240 min	240 min	ASTM D-2471

Descriptive Properties
Color	Grey
Mix Ratio	100A:8B		by weight
Specific Volume	16.5		[in3/lb], ASTM D-792

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PREYN199 / 296900

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