W4 45mm White Mastic Sealing Strip

A high-performance white butyl tape, widely used by caravan and motorhome manufacturers for sealing and re-bedding fittings. Suitable for a range of applications including aluminium mouldings, overlap joints, awning rails, exterior lights, vents, rooflights, window surrounds, grab handles, and most external trims. This mastic sealing strip forms a flexible, waterproof seal with excellent UV resistance, ensuring long-lasting durability and reliable performance.