Bostik Bond-Flex 100 Silicone Sealant, Black 300ml

Bostik Bond-Flex 100 Silicone Sealant is a professional-grade, single-component sealant that cures upon exposure to atmospheric moisture to form a highly elastic and resilient seal. Designed to maintain its flexibility across an exceptionally wide temperature range, it provides a durable, long-lasting barrier against the elements. Its excellent resistance to weathering, ageing, and water makes it a reliable choice for a variety of demanding sealing applications.

This high-modulus, acetoxy-cure silicone is engineered for general-purpose use where strong adhesion to non-porous surfaces is essential. It is particularly effective for sealing joints in metal cladding and curtain walling systems, ensuring a secure and weatherproof finish. The sealant exhibits a high level of extensibility, capable of stretching over 600% without failure, which accommodates structural movement and thermal expansion.

Key Features & Benefits

• High Elasticity: Maintains flexibility from -50°C to +180°C, ensuring performance in extreme conditions.
• Superior Durability: Extremely resistant to weathering, UV exposure, and ageing for a long service life.
• Waterproof Seal: Creates a durable, watertight barrier that prevents moisture ingress.
• Low Shrinkage: Minimises shrinking during the curing process for a consistent, reliable seal.
• Certified Quality: Conforms to the ISO 11600 F G 20LM standard for building construction sealants.
• Easy Application: Supplied in a convenient 300ml cartridge for professional and DIY use.

Ideal for creating permanent, flexible seals in construction and maintenance projects, Bostik Bond-Flex 100 delivers proven performance and reliability.