

Compressible Self-Expanding Foam Tape Sealing Adhesive Expand Multiple Sizes Seal Door Window Cover (20mm x 6mm x 5.6m)
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1 availableAbout this item
- HIGH-PERFORMANCE SELF-EXPANDING TAPE – Premium polyurethane foam tape that expands up to 5× its original height, filling joints and gaps automatically for a long-lasting, weather-tight seal.
- SUPERIOR WEATHERPROOF SEALING – Provides reliable protection against wind, rain, dust, and drafts. Ideal for exterior and interior sealing where durability and airtight performance are essential.
- BREATHABLE & MOISTURE-REGULATING – Vapor-permeable structure allows moisture to escape while keeping water out, preventing condensation, mold growth, and structural damage.
- DURABLE, FLEXIBLE & UV-RESISTANT – Made from high-density 50 kg/m³ polyurethane foam, ensuring excellent elasticity, stability, and long-term resistance to temperature changes, UV exposure, and aging.
- EASY SELF-ADHESIVE INSTALLATION – Features a strong adhesive backing for quick, clean, and tool-free application on windows, doors, façades, cladding joints, roofs, and general construction gaps.
- WIDE RANGE OF SIZES AVAILABLE – Offered in multiple widths and thicknesses to suit various gap sizes and professional sealing requirements. Expands fully within 24 hours for optimal performance.
Product description
Self-Expanding Sealing Tape – High-Performance Polyurethane Foam Sealant for Joints, Windows, Doors, and Façades Product Overview The Self-Expanding Sealing Tape is a premium, self-adhesive joint sealing solution engineered for reliable and long-lasting weather protection. Made from flexible polyurethane foam impregnated with a modified acrylic dispersion, this tape automatically expands after installation to fill joints and gaps—ensuring superior sealing against wind, rain, and dust. Key Features 🧱 Self-Expanding Technology: Expands up to 5× its original height within 24 hours, filling gaps efficiently and maintaining consistent compression for a perfect seal. 🌧️ Excellent Sealing Performance: Provides a durable, weatherproof, and airtight seal that blocks out rain, wind, and dust for lasting protection. 💨 Breathable Structure: Allows moisture vapor to escape, preventing condensation and mold buildup while maintaining interior comfort. 🔩 Durable & Flexible: Constructed from high-density polyurethane foam (50 kg/m³) for superior elasticity, stability, and resistance to UV and temperature variations. ⚙️ Easy to Apply: Self-adhesive backing allows for quick, clean, and tool-free installation on most building materials—ideal for professionals and DIYers alike. Typical Applications Window and door frame sealing Façade and cladding joints Expansion joints in construction Roof and wall penetrations General weatherproofing and insulation Technical Specifications Property Detail Material Flexible polyurethane foam Impregnation Modified acrylic dispersion Density 50 kg/m³ Expansion Ratio Up to 5× original height Full Expansion Time Within 24 hours Adhesion Self-adhesive backing Properties Weatherproof, vapor-permeable, elastic Available Sizes (Before Expansion) 10 mm × 2 mm × 12.5 m 15 mm × 2 mm × 12.5 m 20 mm × 2 mm × 12.5 m 10 mm × 3 mm × 10 m 15 mm × 3 mm × 10 m 20 mm × 3 mm × 10 m 10 mm × 4 mm × 8 m 15 mm × 4 mm × 8 m 20 mm × 4 mm × 8 m 40 mm × 4 mm × 8 m 15 mm × 6 mm × 5.6 m 20 mm × 6 mm × 5.6 m 30 mm × 6 mm × 5.6 m 40 mm × 6 mm × 5.6 m 15 mm × 10 mm × 3.3 m 20 mm × 10 mm × 3.3 m Expansion Example: Initial height × 5 = Final expanded height
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What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
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