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Dowsil™ Firestop 400 is a high-performance, intumescent acrylic sealant designed for internal firestopping applications. This white sealant helps maintain the integrity of fire walls and partitions, ensuring fire protection where needed. Crucially, it's formulated to not emit halogenated by-products during a fire. Resistant to mildew and mould growth, it provides long-lasting protection.
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