Transparent platinum-cure RTV-2 silicone gel for potting and encapsulation

General Information

P-831 is an extremely soft, tacky, transparent, resilient silicone rubber gel. It is a two component, addition cure material that is sensitive to cure inhibition when in contact with sulfur, nitrogen or organo-tin containing materials. P-831 has a low viscosity that allows for easy mixing, deairing and pouring. It is used for potting or encapsulating electrical parts where visual inspection is required. It has excellent electrical insulating properties and provides superior damping characteristics. P-831 has greater mechanical properties than traditional gels and can be used in conjunction with platinum cured special effect silicones to produce realistic simulations of living tissue.

Typical Properties

Uncatalyzed Compound

Color

Base:Clear, colorlessActivator:Clear, colorless

Viscosity

Base:1,300cpsActivator:1,500cps

Mixing Ratio

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

Mixed Viscosity

n.a.cps

Working Time

n.a.

Cure Time

n.a.hours

Shelf Life

6months

Vulcanized (Cured) Properties

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

Shore A Hardness

One day:n.a.7 days:n.a.

±4 durometer

Tear Resistance

n.a.ppiASTM D624

Tensile Strength

n.a.psiASTM D412

Elongation

n.a.%ASTM D412

Service Temperature

n.a.

Shrinkage

0.00%

Specific Gravity

1.00

Coverage

n.a.

Elongation

>500

Working time

2 minutes

Tensile strength

< 100

Texture analyzer

1 day 115 + 10; 7 day 115 + 10

Demold Time (minutes)

5