
£7.20
HP50 High Performance Sealant is a next-generation hybrid polymer sealant and adhesive delivering maximum strength, flexibility, and durability for universal construction and roofing applications.
Roofer’s No.1 HP50 is a high-performance hybrid polymer sealant formulated for exceptional adhesion, flexibility, and long-term durability. Designed for demanding sealing and bonding tasks, it adheres strongly to most building materials including metal, glass, timber, plastic, concrete, brick, and composites.
Suitable for interior and exterior use, HP50 provides a weatherproof, vibration-resistant seal that remains flexible over time without cracking. Available in black or clear finishes, it is ideal for roofing, cladding, glazing, and general construction applications.
Cartridge Size: 300 ml
Colours: Black / Clear
Material Type: Hybrid polymer sealant & adhesive
Suitable Surfaces: Metal, concrete, timber, glass, plastics, masonry
Roofing and cladding joints
General construction and repair
Fixing trims, flashings, and accessories
Sealing gaps, cracks, and penetrations

Roofer's No.1 offers a growing range of flat roofing essentials designed for practical use and dependable performance. From VCL systems and primers to all-in-one kits, these products are made to deliver results on-site without compromise.
