P-824 reusable vacuum bagging RTV-2 silicone

General Information

P-824 is a fast curing, sprayable or trowelable addition reacted, platinum cured RTV-2 silicone specially designed for use as a reusable vacuum bag. Does not sag as some bagging materials do requiring additional work to keep from pooling. High tear, tensile and elongation along with high temperature resistances make this an excellent choice for working with polyester, epoxy or urethane systems. Rapid demold time allows for immediate use in production when working with prepreg intensifiers, bladders, aluminum or prepreg double bonding, epoxy infusion and other autoclave applications.

Typical Properties

Uncatalyzed Compound

Color

Base:TranslucentActivator:Blue

Viscosity

Base:40,000–45,000cpsActivator:2,000cps

Mixing Ratio

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

Mixed Viscosity

17,000–23,000cps

Working Time

8.0–10.0hours

Cure Time

15–30hours

Shelf Life

3months

Vulcanized (Cured) Properties

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

Shore A Hardness

One day:257 days:25

±4 durometer

Tear Resistance

80 ± 10ppiASTM D624

Tensile Strength

490 ± 50psiASTM D412

Elongation

475 ± 25%ASTM D412

Service Temperature

-60 to 600°F

Shrinkage

0.10%

Specific Gravity

1.09

Coverage

n.a.

Demold Time

15

30 minute Shore A

23