Waterproofing Tape is a flexible, adhesive-backed sealing material used to prevent water penetration in joints, cracks, and vulnerable building areas. It is commonly used in roofing, plumbing, bathrooms, external walls, and underground structures where a watertight barrier is essential.
The tape adheres firmly to a variety of surfaces and maintains flexibility, making it effective in areas that may experience movement, vibration, or expansion.
🧪 Composition
Waterproofing tapes are generally composed of multiple layers designed for durability and performance:
Layer Description
Top Layer UV-resistant film, aluminum foil, or polyethylene (PE)
Core Layer Butyl rubber or bituminous compound for waterproof sealing
Adhesive Layer Pressure-sensitive adhesive (PSA) or hot-melt bitumen
Release Film Non-stick backing paper or plastic film for easy application
📏 Common Sizes & Variants
Parameter Range
Thickness 1 mm to 3 mm
Roll Length Typically 5 m to 20 m per roll
🏗️ Application Areas
🏠 Building & Construction
Roof joints, skylights, and ridge areas
Flashing and metal roof overlaps
Expansion joints and control joints
Window and door perimeters
Wet rooms (bathrooms, kitchens)
💧 Plumbing & Utilities
Water pipe sealing (temporary or emergency repair)
Underground utility joint wrapping
Rainwater gutter joints and leaks
🔧 Features & Benefits
Feature Benefit
💧 100% Waterproof Seals leaks and prevents water ingress
🔩 Excellent Adhesion Bonds to concrete, metal, wood, glass, plastic, and stone
🌞 UV Resistant (in aluminum-backed tapes) Suitable for outdoor exposure
🧱 Flexible & Stretchable Handles substrate movement and vibrations
🔥 Heat Resistant Withstands moderate temperature ranges (up to 80°C in some types)
❄️ Cold-Weather Flexible Some tapes remain pliable in freezing temperatures
🛠️ Easy to Apply Peel-and-stick, no primer or heat required for most types
🔇 Seals Air Gaps Also effective as air barriers or damp barriers
