Mapei TPE Expansion Joint Band, 30m x 325mm, Suitable for Waterproofing Large Structural Joints and Cracks

Mapei Mapeband TPE 325 Rotoli 30Ml is a professional-grade protection and sealing tape. It provides a watertight seal against corrosive and abrasive forces and is designed for use on tanks, pipes, conduits, and metal-to-metal joints where a reliable adhesive seal is needed. The 30 ml roll can be cut to fit various sizes and shapes, eliminating the need for soldering or welding in many applications.

It is formulated from a rubber–polyethylene composition with an adhesive backing. Key properties include corrosion and abrasion resistance, UV resistance, flexibility, and the ability to withstand temperature variations up to 200°C. It is designed to provide a durable, watertight seal without the need for additional bonding methods.

Common uses include sealing connections in tanks and pipes, fixing conduits to walls, and providing strong adhesion between metal surfaces. It’s suitable for environments where water, oils, and other fluids may be present, and where a robust, long-lasting seal is required.

1) Clean and dry the surfaces to be joined. 2) Measure and cut the tape to the required length. 3) Peel back the adhesive backing and apply the tape along the seam or joint, pressing firmly as you go. 4) Overlap tape ends where needed to ensure a continuous seal. 5) Smooth out any air pockets and continue applying pressure to ensure a firm bond. Allow the bonding area to set with light pressure to maximize adhesion.

The product comes in a 30 ml roll. It can be cut to fit any required length or circumference using scissors or a sharp utility knife. Fitting pieces should be measured carefully to minimize waste and ensure full coverage of the joint or seam.

It is designed to form solid adhesion on metal surfaces and can be used to seal joints in tanks, pipes, and conduits mounted on walls. Prepare surfaces by cleaning away oil, dirt, and moisture; ensure they are dry before applying the tape for optimal bonding.

The tape is UV-resistant and can tolerate temperature variations up to 200°C, making it suitable for outdoor or high-heat environments where sustained sealing and protection are required.

Store in a cool, dry place away from direct sunlight and heat sources. Keep the roll sealed when not in use and wear gloves during cutting and handling to avoid skin contact with adhesive materials.

If you’re evaluating options, consider these similar MAPEI Mapeband tapes on Fepy: Mapeband TPE 230 and Mapeband TPE 520. You can view them here: https://fepy.com/en/product/mapeband-tpe-230 and https://fepy.com/en/product/mapeband-tpe-520

Consider the joint type, exposure to water or chemicals, required sealing strength, and operating temperatures. Mapeband TPE 325 offers a corrosion- and abrasion-resistant seal with UV tolerance and high-temperature capability, making it a strong option for metal-to-metal joints and pipe or tank connections where soldering or welding isn’t feasible.

Its adhesive-backed construction eliminates the need for separate glues or welding, saving time and labor while delivering a reliable, watertight seal. Its durability under UV and high temperatures helps reduce maintenance and rework over time, contributing to better long-term value.