Formulated for the sealing and re-bedding of overlap joints, awning rails, roof lights, vents, window surrounds and most external trims. This versatile sealing solution is ideal for a wide range of caravan and motorhome fittings. It is also perfect for use on aluminium mouldings, exterior lights, grab handles, and most external trims, ensuring a secure and long-lasting seal. Formulated to withstand outdoor conditions, this mastic sealing strip provides a reliable, weatherproof seal to protect against leaks and damage. Convenient and simple to use, this sealing strip makes it easy to maintain and upgrade your caravan or motorhome fittings without the need for professional assistance. Trusted by caravan and motorhome owners, the W4 Mastic sealing strip offers high-quality performance.