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PENOSIL
FireStop Intumescent Acrylic 681 Fire resistant intumescent sealant

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PENOSIL FireStop Intumescent Acrylic 681 is an acrylic-based intumescent sealant for fireproofing joints and sealing penetrations in fire-rated structures. Withstands fire up to 4 hours in a linear and piping joint. 

Can be painted
Can be painted
Low odour
Low odour
Expands with heat
Expands with heat
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