Everbuild Sikaflex Silicone (300ml, Grey) is a high-performance, one-component neutral-cure silicone sealant suitable for a wide range of internal and external sealing applications. The grey colour is a versatile, neutral tone that blends seamlessly with concrete, render, slate, and metal substrates — making it one of the most widely used colours for both internal and external construction sealing.

The neutral-cure formulation makes it safe for use on sensitive substrates including natural stone, marble, and mirrors, where acetoxy-cure silicones can cause staining or corrosion. Once cured, it is resistant to UV, weathering, and most common cleaning agents.

• Size: 300ml cartridge
• Colour: Grey
• Type: Neutral-cure silicone sealant
• Suitable for: Concrete, render, slate, metal, UPVC, glass, ceramics, natural stone
• Application: Standard 310ml cartridge gun
• Use: Internal and external sealing where a grey colour match is required
• Properties: Flexible, UV resistant, weatherproof, non-corrosive

Also available in White, Clear, Brown, Beige, and Black. Browse the full Sika Everbuild range.