The Everbuild 145 Butyl Rubber C3 Sealant is a traditional polybutene-based sealant designed for weatherproof sealing in both exterior and interior applications. This one-component specialist sealant forms a protective skin within 24 hours whilst remaining permanently plastic underneath, allowing it to accommodate joint movement of ±5%. Ideal for tradespeople requiring reliable weatherproofing, this butyl rubber sealant offers excellent UV resistance and chemical resistance, making it suitable f
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