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Gap filling flexible Acoustic Sealant that is also intumescent to give additional fire protection.
This high density white Acoustic Sealant is a single application Fire Resistant Water-based flexible Sealant. It gives good adhesion to a wide variety of common building substrates without the need for a primer. Paintable with emulsion paints three hours after application. Allow 12 hours before over painting with gloss paints.
When subject to fire, the sealant will intumesce (expand and char), thus blocking the passage of fire and smoke.