Bostik Bond-Flex 100 HMA Silicone Sealant, Clear 310ml

The Bostik Bond-Flex 100 HMA Silicone Sealant is a high-performance, single-part acetoxy-cure sealant designed for robust, flexible, and long-lasting seals. Upon application, it cures upon exposure to atmospheric moisture, forming a highly elastic and resilient rubber seal that maintains excellent flexibility across an extensive temperature range. This makes it an incredibly versatile solution for both interior and exterior applications where movement and thermal expansion are concerns.

Engineered for superior durability, this sealant exhibits extreme resistance to weathering, ageing, and water, ensuring a reliable waterproof barrier that stands the test of time. Its high modulus (strength) and exceptional extensibility—capable of stretching over 600%—allow it to accommodate significant joint movement without failing. Furthermore, it features very low shrinkage during curing, resulting in a stable, gap-free seal.

Ideal Applications

Bostik Bond-Flex 100 is perfectly suited for general-purpose sealing tasks that require strong adhesion to non-porous surfaces. It is a top choice for sealing metal cladding, curtain walling systems, glazing, and other construction joints. Its clear finish provides a discreet, professional look that blends seamlessly with most materials.

Key Specifications & Benefits

• High Performance: A high-modulus, acetoxy-cure silicone sealant conforming to ISO 11600 F G 20LM.
• Exceptional Flexibility: Offers a high level of extensibility, exceeding 600%, to absorb movement.
• Durable & Waterproof: Creates a long-lasting, impermeable seal resistant to harsh environmental conditions.
• Wide Temperature Range: Suitable for in-service temperatures from -50°C to +180°C.
• Low Shrinkage: Minimises cracking and gap formation as it cures for a reliable finish.
• Convenient Size: Supplied in a practical 310ml cartridge for both DIY