K-EXPAND BG1 2–4mm × 10m is a self-adhesive, pre-compressed polyurethane expanding foam tape engineered for precision joint sealing where gap tolerances are fine and a long continuous run is required. Compressing to just 2–4mm and expanding reliably to fill joints up to 14mm wide, this tape is ideally suited to slim window and door frame perimeters, narrow bead lines, glazing cassette interfaces, and lightweight curtain walling systems where a low-profile seal must perform reliably without adding bulk to the joint.
The 10m roll length provides an excellent balance between coverage and manageability — long enough to minimise joins on extended runs, while remaining easy to handle on site. Like all K-EXPAND BG1 tapes, it is BBA Approved and independently verified to DIN 18542 BG1 standards for long-term weather tightness under demanding UK external conditions.
Key Features
- BBA Certified Performance — British Board of Agrément approved, providing verified durability and weather tightness for specification-level confidence
- BG1 Weather Classification — tested to withstand driving rain up to 600 Pa at 25% compression
- 2–4mm Compressed / Expands to 14mm — precision-sized for slim-profile window and door frame joints
- 10m Roll Length — extended coverage per roll, minimising joins on continuous perimeter sealing runs
- Self-Adhesive Backing — bonds cleanly to frames, reveals, sills, and glazing cassettes for rapid installation
- Permanently Elastic — sustains a continuous, gap-free seal through thermal movement and structural settlement
- Thermal & Acoustic Insulation — contributes to energy efficiency and noise attenuation in residential and commercial builds
- UV & Ozone Resistant — retains physical integrity under sustained external exposure
- Fire Retardant — acrylic-impregnated, chemically stabilised PU foam for improved on-site fire safety
Why Choose K-EXPAND BG1 2–4mm?
- Fine 2–4mm compressed profile for slim-tolerance fenestration and glazing joints
- 10m length delivers strong coverage with minimal roll changes per job
- BBA Approved for use on specification-led and contractor-driven projects
- 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