Reynolds Mold Max® 30 Silicone Rubber Compounds

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Reynolds Mold Max® 30 Silicone Rubber Compounds
Categories:	Polymer; Thermoset; Silicone; Silicone Rubber
Material Notes:	Product Overview: Mold Max™ Silicones are tin-cured silicone rubber compounds that have exceptional working properties and library life. Mold Max™ Silicones feature Smooth-On’s exclusive “Libra™” catalyst for long library life. Mold Max™ silicones can be pigmented with Silc Pig™ silicone colorants. Pot life for the pourable silicones is 45 minutes and they cure overnight at room temperature. Mold Max™ Silicones will reproduce the finest detail and are suitable for a variety of industrial and art related applications including making molds for reproducing prototypes, furniture, sculpture and architectural elements. Mold Max™ 10, 20, 25 and 30 silicones can be thickened with THI-VEX™ additive for brush-on applications. (Note: THI-VEX™ is NOT compatible with Mold Max™ 40 or 60). Mold Max™ 60 offers highest heat resistance for casting metal (see separate technical bulletin) Mold Max™ Silicones can be used to cast a variety of materials including wax, gypsum, low melt alloys/metals and urethane, epoxy or polyester resins (without using a release agent). Important; you must weigh Part A & B components using a gram scale to be successful with Mold Max™ silicones. Vacuum degassing mixed material using a vacuum pump and chamber to remove entrapped air is recommended. Information provided by Reynolds Advanced Materials
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Physical Properties	Original Value	Comments

Specific Gravity	1.18 g/cc	ASTM D-1475
Viscosity	25000 cP	Mixed; ASTM D-2393
Linear Mold Shrinkage	0.0020 in/in	ASTM D-2566

Mechanical Properties	Original Value	Comments
Hardness, Shore A	30	ASTM D-2240
Tensile Strength	577 psi	ASTM D-412
Elongation at Break	300 %	ASTM D-412
100% Modulus	110 psi	ASTM D-412
Tear Strength	125 pli	Die B; ASTM D-624

Electrical Properties	Original Value	Comments
Volume Resistivity	5.83e+13 ohm-cm	ASTM D257-14
Surface Resistance	8.29e+11 ohm	ASTM D257-14
Dielectric Constant	3.29 @Frequency 100 Hz	ASTM D150-18
Dielectric Strength	330 V/mil	ASTM D149-20
Dissipation Factor	0.0050 @Frequency 100 Hz	ASTM D150-18

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	205 °C
Minimum Service Temperature, Air	-53.0 °C

Processing Properties	Original Value	Comments
Cure Time	24.0 hour
Pot Life	45.0 min	ASTM D-2471

Descriptive Properties
Color	Pink
Mix Ratio	100A:10B	by weight
Specific Volume	23.5	[cu. in./lb.]

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PREYN104 / 296805

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