P-44 Silicone for mold making. Two catalysts available, P-44 A-1 for increased release, A-2 for dry release.

General Information

P-44 is excellent for mold making where visual inspection is desired. Moderate durometer with superb physical properties, excellent release and chemical resistance. Two activators available, A-1 for casting fill, pigmented parts (has a slight oily feel) and A-2 for casting clear urethanes.

Typical Properties

Uncatalyzed Compound

Color

Base:TransparentActivator:Clear

Viscosity

Base:90,000–100,000cpsActivator:1,000cps

Mixing Ratio

By weight:10:1By volume:100:11.1

Mixed Viscosity

50,000–60,000cps

Working Time

1.0–2.0hours

Cure Time

16–18hours

Shelf Life

6months

Vulcanized (Cured) Properties

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

Shore A Hardness

One day:457 days:45

±4 durometer

Tear Resistance

120 ± 20ppiASTM D624

Tensile Strength

600 ± 50psiASTM D412

Elongation

250 ± 25%ASTM D412

Service Temperature

-60 to 650°F

Shrinkage

0.00%

Specific Gravity

1.08

Coverage

n.a.