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The BOSS PRODUCTS 12503 Multi-Seal Building/Construction Sealant is a multi-purpose, one-part sealant formulated with USP Technology. This sealant is free from solvents and isocyanates. It cures on exposure to atmospheric moisture, forming a durable, flexible seal with primerless adhesion to common building materials. It can be applied in most weather conditions and is paintable with most latex base paints.
This one-part adhesive sealant requires no mixing and provides long-term reliability, remaining flexible without cracking or drying. Its non-slump properties allow use in vertical, horizontal, and overhead joints.
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