Isomass Isocheck Expandastrip Frame Seal 4000mm x 15mm x 10mm to 20mm

Isocheck Expandastrip is a versatile open-cell polyurethane foam impregnated with chemically stabilised acrylic and backed with a self-adhesive scrim tape for effortless application.

Designed to remain permanently elastic, Expandastrip expands upon unpacking to fill joints, accommodating irregularities and imperfections. Its exceptional flexibility makes it ideal for uneven surfaces and suitable for use with materials such as concrete, brickwork, steel, plastics, timber, and fibrous substrates.

Supplied in rolls compressed to one-sixth of their original thickness, it features a self-adhesive backing for straightforward installation. At full expansion, it acts as a light air baffle, while at 25% expansion of its compressed state, it creates a weather-tight seal against wind and rain.

Applications:

• Sealing joints between precast units.
• Weatherproofing around windows and doors.
• Securing corrugated roofing panels, roof structures, and roof lights.
• Acoustic sealing for gaps between floors and walls.
• Air and dust sealing for domestic properties.
• Use as a primary or secondary seal for building facades, cladding systems, curtain walling, and skylights.

Expandastrip is an effective solution for acoustic, weatherproof, and structural sealing across a range of residential, commercial, and industrial applications.