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Butyl Sealant 444 Weatherproof butyl mastic

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PENOSIL Butyl Sealant 444 is a weatherproof and durable butyl mastic for various exterior sealing works. Specially designed for weatherproofing and sealing exterior joints where a permanent plastic connection is required. Adheres well to most common construction materials such as wood, concrete, metal, PVC and glass.

Long processing time
Long processing time
Low odour
Low odour
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