High-elongation tin-cure RTV-2 silicone for urethane casting

General Information

GI-585 is a high strength, two-component, tin catalyzed RTV silicone rubber with excellent resistance to polyurethane resins. It is designed for casting solid polyurethane, epoxies, polyesters and other plastic parts. GI-585 is useful for applications where a strong, flexible rubber is needed.

Typical Properties

Uncatalyzed Compound

Color

Base:Off whiteActivator:Blue

Viscosity

Base:25,000–35,000cpsActivator:350cps

Mixing Ratio

By weight:100:10By volume:n.a.

Mixed Viscosity

20,000–25,000cps

Working Time

1.0–1.5hours

Cure Time

16–18hours

Shelf Life

6months

Vulcanized (Cured) Properties

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

Shore A Hardness

One day:157 days:22

±4 durometer

Tear Resistance

100 ± 25ppiASTM D624

Tensile Strength

300 ± 50psiASTM D412

Elongation

375 ± 50%ASTM D412

Service Temperature

-60 to 400°F

Shrinkage

0.10%

Specific Gravity

1.21

Coverage

n.a.