Reynolds EpoxAcast® 655; Hardener: 103 Slow Aluminum filled castable epoxy

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Reynolds EpoxAcast® 655; Hardener: 103 Slow 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	Original Value	Comments

Specific Gravity	1.66 g/cc	ASTM D-1475
Viscosity	23000 cP	Mixed; ASTM D-2393
Linear Mold Shrinkage	0.00060 in/in	ASTM D-2566

Mechanical Properties	Original Value	Comments
Hardness, Shore D	90	ASTM D-2240
Tensile Strength, Ultimate	4810 psi	ASTM D-638
Elongation at Break	0.54 %	ASTM D-638
Tensile Modulus	2.04e+6 psi	ASTM D-638
Flexural Strength	7660 psi	ASTM D-790
Flexural Modulus	1.403e+6 psi	ASTM D-790
Compressive Strength	12500 psi	ASTM D-695
Compressive Modulus	125500 psi	ASTM D-695

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	57.0 °C	Heat Deflection Temperature; ASTM D-648

Processing Properties	Original Value	Comments
Cure Time	24.0 hour
Pot Life	210 min	ASTM D-2471

Descriptive Properties
Color	Grey
Mix Ratio	100A:12B	by weight
Specific Volume	16.7	[in3/lb], ASTM D-792

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PREYN198 / 296899

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