W4 Mastic Sealing Strips

Product Description

W4 Mastic Sealing Strips are available in three thicknesses 19, 32 or 45 mm and a choice of two colours; grey or white.  Length = 5 metres.

The W4  Mastic Sealing Strip is a top-quality butyl tape specially formulated for sealing and re-bedding caravan fittings. As used by most caravan manufacturers, this strip sealant is perfect for aluminium mouldings, overlap joints, awning rails, exterior lights, window surrounds, grab handles, and most external trims. It forms a waterproof seal and remains flexible throughout its service life, accommodating the movement typically found in these applications without cracking or allowing water penetration. With good UV resistance, this sealing strip will provide long-lasting performance even in outdoor environments. The application is made easy - simply apply directly from the reel onto one surface, press firmly for good adhesion, remove the backing paper, and seal across the joint. For best results, ensure the surface is clean, dry, and free from frost, grease, and loose materials. Store the sealing strip flat in its original packaging in cool, dry conditions. Trust W4 Parts for high-quality caravan, camping, and marine accessories, as they have been a leading brand for 40 years, offering practical, useful, and essential items.

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