High-durometer platinum-cure RTV-2 silicone for trapped rubber molding

General Information

P-65 is a two component, addition reacted silicone mold making material. It has a high durometer, modulus and superb physical properties. Minimal shrinkage and extreme chemical resistance making it an excellent choice for prototyping, casting urethane foam and other plastics. Also an excellent choice for use in trapped rubber molding and pressure intensifier applications when working with epoxy composites.

Typical Properties

Uncatalyzed Compound

Color

Base:n.a.Activator:n.a.

Viscosity

Base:n.a.cpsActivator:n.a.cps

Mixing Ratio

By weight:10:1By volume:n.a.

Mixed Viscosity

64,000–68,000cps

Working Time

1.0–2.0hours

Cure Time

n.a.hours

Shelf Life

n.a.

Vulcanized (Cured) Properties

Measured at 7 days, 70°F / 50% relative humidity

Shore A Hardness

One day:697 days:71

±4 durometer

Tear Resistance

85 ± 10ppiASTM D624

Tensile Strength

775 ± 25psiASTM D412

Elongation

125 ± 25%ASTM D412

Service Temperature

-60 to 650°F

Shrinkage

n.a.

Specific Gravity

1.24

Coverage

n.a.

Demold Time

18 - 24

CTE (linear)

2.85 x 10-4m/m-oC