K-EXPAND SELF-ADHESIVE PRE-COMPRESSED PU EXPANDING FOAM TAPE BG1 24-40MM X 2M (24MM-123MM)

K-EXPAND BG1 24–40mm × 2m is a self-adhesive, pre-compressed polyurethane expanding foam tape designed for the most demanding joint-sealing challenges in construction. With an exceptional expansion range of 24–40mm compressed up to a full 123mm — the greatest in the K-EXPAND BG1 range — this tape is built for applications where conventional sealing products simply cannot bridge the gap. It is the product of choice for wide structural movement joints, oversized commercial openings, large-format cladding panel interfaces, heavy-duty industrial glazing systems, and anywhere building tolerances are generous or irregular.

Despite its extreme gap-filling capability, the tape’s controlled, progressive expansion gives the installer a practical working window to position and adjust before the foam reaches full width. BBA Approved and compliant with DIN 18542 BG1 standards, it delivers certified, long-term protection against water ingress, wind, dust, and noise in the most exposed external environments.

Key Features

• BBA Certified Performance — British Board of Agrément approved for rigorous specification compliance and long-term on-site reliability
• BG1 Weather Classification — certified resistance to driving rain up to 600 Pa at 25% compression
• 24–40mm Compressed / Expands to 123mm — the widest expansion range in the K-EXPAND BG1 series, engineered for oversized and out-of-tolerance joints
• 2m Roll Length — optimised for precise, controlled application on individual large openings or defined joint sections
• Self-Adhesive Backing — fast, accurate positioning on heavy frames, soffits, structural substrates, and wide reveals
• Progressive Expansion — controlled expansion rate maintains workability even at maximum gap-filling capacity
• Permanently Elastic — withstands significant structural movement, thermal cycling, and building settlement without seal failure
• Thermal & Acoustic Insulation — supports energy performance targets and sound reduction in large-scale commercial builds
• UV & Ozone Resistant — engineered for long-term durability on exposed elevations and facades
• Fire Retardant — acrylic-impregnated PU foam formulation for enhanced fire resistance

Why Choose K-EXPAND BG1 24–40mm?

• Maximum expansion capacity in the BG1 range — fills joints up to 123mm fully expanded
• The definitive choice for wide-gap commercial, industrial, and structural sealing applications
• BBA Approved for specification-grade project use across residential and commercial sectors
• Complies with DIN 18542 BG1 standards

For datasheets, installation guides, and further technical information, please contact us on 01245 322 177 or email customer.services@kingdomgroup.com