K-Expand Expanding Foam Tape

K-Expand is Kingdom’s range of self-adhesive, pre-compressed polyurethane (PU) expanding foam tape, engineered for high-performance joint sealing in construction, fenestration, and glazing applications. Available in a wide range of sizes, K-Expand tapes are BBA Approved and comply with DIN 18542 BG1 standards, making them a trusted choice for professionals who demand certified, long-term performance.

Each tape is supplied in its compressed state, allowing for fast, clean installation directly onto window frames, door frames, facades, and structural joints. Once applied, the foam slowly expands to fill and seal the joint, providing an effective barrier against driving rain (rated to 600 Pa at 25% compression), wind, dust, and noise.

Key benefits of K-Expand Expanding Foam Tape:

• BBA Certified – British Board of Agrément approved for assured quality and site compliance
• BG1 Rated – weather-tight performance for demanding external applications
• Thermal & acoustic insulation – reduces heat loss and dampens sound for improved building performance
• Permanently elastic – accommodates structural movement and irregular joint gaps
• UV & ozone resistant – maintains integrity over the long term outdoors
• Fire retardant – acrylic-impregnated PU foam for added safety on site
• Multiple sizes available – from 1.5mm up to 40mm compressed width to suit all joint dimensions

Whether you’re sealing around windows, doors, curtain walling, or expansion joints, K-Expand provides a reliable, code-compliant solution trusted by contractors, builders, and glazing specialists across the UK.

Browse the range below or contact our team on 01245 322 177 for technical advice, datasheets, or bulk pricing.