Sikasil GP is a general purpose, onecomponent, non-sag, elastomeric, RTV acetoxy silicone sealant with good adhesion characteristics for general sealing and bonding applications. Sikasil GP maintains elastomeric properties up to 350° F continuous, 392°F intermittent.
Sika Sikasil GP is a one-component, RTV acetoxy-cure silicone sealant formulated for a wide range of general-purpose sealing and bonding applications. Supplied in a 10oz white cartridge, this non-sag elastomeric sealant delivers excellent adhesion to common construction substrates including glass, plastic, tile, wood, fiberglass, painted metals, and ceramics—without the need for a primer. Designed for fast cure and superior tooling, Sikasil GP maintains elasticity in extreme temperatures and resists UV, ozone, and moisture exposure. Ideal for window glazing, doors, HVAC, plumbing, roofing, and marine applications, it also contains an anti-microbial additive for mold resistance in humid environments.
Property | Value |
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Packaging | 10 fl.oz. (295 ml) cartridge |
Cure Type | Acetoxy, moisture cure |
Skin Time | 13 minutes at 73°F (23°C), 50% RH |
Tensile Strength | 220 psi (ASTM D412) |
Elongation at Break | 500% (ASTM D412) |
Shore A Hardness | 20 (ASTM D2240) |
Peel Strength | 20 pli (ASTM C794) |
Service Temperature | -76°F to 350°F continuous, up to 392°F intermittent |
Shelf Life | 24 months (unopened, below 77°F) |
Can Sikasil GP be painted?
No. Sikasil GP is not paintable and should not be coated with paints or finishes.
Is priming required before use?
In most cases, no primer is needed. However, certain difficult substrates may require pre-treatment for optimal adhesion.
Can Sikasil GP be used outdoors?
Yes. It is designed to withstand UV exposure, ozone, and extreme weather conditions for long-term exterior use.
Brand | Sika |
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Color | White |
Size | 10oz |
Manufacturer | Sika |