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

General Information

Silicones, Incorporated’s P-429 Platinum Gel 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-429 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-429 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:TransparentActivator:Transparent

Viscosity

Base:4,000cpsActivator:4,000cps

Mixing Ratio

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

Mixed Viscosity

n.a.cps

Working Time

2.0–4.0hours

Cure Time

18–24hours

Shelf Life

12months

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

Tensile strength

< 100

Texture analyzer

O/N : 30 +/- 5 7 day: Same

Volume Resistivity (ohmx/cm)

1 x 10^15

Dissipation Factor (@ 100 Hz)

0.003

Dielectric Constant (@ 100 Hz)

2.9

Dielectric Strength (volts/mil)

500