Isomass Isocheck Expandastrip Frame Seal 2000mm x 25mm x 27mm to 54mm

Isocheck Expandastrip is a high-performance open-cell polyurethane foam, impregnated with chemically stabilised acrylic and reinforced with a self-adhesive scrim tape for easy application.

This versatile strip remains permanently elastic and expands upon unpacking to fill joints, accommodating any irregularities or imperfections. Its exceptional flexibility and elasticity make 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, Expandastrip features a self-adhesive backing for straightforward installation. At full expansion, it acts as a light air baffle, and when limited to 25% of its compressed thickness, it provides a weather-tight seal capable of withstanding driving rain and wind.

Key Applications:

• Acoustic sealing for gaps between floors and walls.
• Weatherproof sealing around windows and doors.
• Sealing corrugated roofing panels, roof structures, and roof lights.
• Creating a secure seal in expansion joints and prefabricated sections.
• Air and dust sealing in domestic properties.
• Primary or secondary sealing for building facades, cladding systems, curtain walling, and skylights.

Expandastrip is an adaptable solution for acoustic, weatherproof, and structural sealing, delivering reliable performance across a wide range of residential, commercial, and industrial projects.