Bostik FR Duct Sealer is a high-performance, non-slump adhesive and sealer designed for sealing ducting, roofing joints, and general construction applications. Its fast-drying formula provides excellent workability while curing to form a permanently flexible seal that performs across a wide temperature range.
Suitable for both internal and external use, FR Duct Sealer bonds strongly to a variety of common building materials including galvanised steel, metals, wood, and concrete. Once cured, it can be painted to match surrounding surfaces, making it ideal for both visible and concealed sealing applications.
Commonly used for HVAC ducting, roofing joints, automotive seam repairs, trailers, caravans, and general maintenance work where a durable flexible seal is required.