Sikasil C Premium is a neutral-curing silicone sealant from Sika, supplied in a 300 ml cartridge. It is designed for indoor and outdoor joints and gaps in building and construction applications where a clean, white finish is required.
Neutral curing formula — no acetic acid release, safe for most substrates
Snow-white colour for a clean, discreet finish on visible joints
300 ml cartridge format — suitable for precision bead application
Suitable for interior and exterior use across a wide range of building materials
What sets Sikasil C Premium apart
The neutral curing chemistry avoids the acidic by-products found in standard acetoxy silicones, making it suitable for sensitive materials such as painted surfaces, metals, and plastics. The snow-white colour stays discreet on finished joints without yellowing over time.
Ideal for
Building contractors and tradespeople working on interior fit-outs, façade joints, window installations, and general construction sealing where a neutral, non-staining silicone is required. Also suited for DIY renovation projects that demand a clean white finish on visible seams.
Application of Sikasil C Premium
Clean and dry the substrate — remove dust, grease, and loose particles
Apply a continuous bead of sealant into the joint or gap
Smooth the bead with a spatula or finger to achieve the desired profile
Allow to cure at room temperature; surface skin forms within hours
Sika is a global Swiss manufacturer of chemical products for the building and construction industry, offering sealants, adhesives, and protective coatings. Sikasil C Premium belongs to their professional-grade silicone sealant range, widely used by tradespeople and contractors across Switzerland.
It is a neutral-curing silicone sealant used for joints and gaps in building construction, suitable for both interior and exterior applications on a wide range of substrates.
Yes. The neutral curing formula does not release acetic acid, making it compatible with sensitive materials such as painted surfaces, metals, and plastics.
One 300 ml cartridge of Sika Sikasil C Premium silicone sealant in snow-white colour.
Store in a cool, dry place away from direct sunlight. Keep the cartridge sealed when not in use. Shelf life is subject to the manufacturer's guidelines on the packaging.
Subscribe to the newsletter
New arrivals, promotions and exclusive offers — straight to your inbox.
Please complete your information below to login.
Sign In
Create New Account