SikaSeal Construction Silicone Black CTR300

The Black SikaSeal Construction Silicone is a versatile, high-performance sealant formulated to provide outstanding flexibility, adhesion, and weather resistance for a wide range of building and glazing applications. Its low-modulus acetoxy formula cures quickly to create a durable waterproof seal that can withstand up to 20% joint movement without losing performance.

Designed for both internal and external use, this professional-grade silicone includes a powerful anti-fungal additive to help prevent mould growth in damp or humid environments. The smooth black finish offers a modern, clean appearance, while the low dirt pick-up formulation helps maintain its look over time.

Suitable for use on PVCu, aluminium, brick, glass, timber, and many plastics, the Black SikaSeal Construction Silicone provides reliable bonding and long-lasting protection across multiple surfaces. Ideal for perimeter pointing, glazing, expansion joints, draught-proofing, trims, cladding, and sealing around pre-formed panels, it delivers a strong and professional finish for demanding construction projects.