The order subtotal is less than the minimum allowed value (£14.00)
Intumenscent mastic comes in a 310ml cartridge and is used to seal gaps around fire doors, windows, cables, pipes, joints, voids and small holes in fire rated structures.
Available in white, brown and grey (see options below), it can fill gaps up to 25mm wide with no slump and can be overpainted.With up to 4 hours of fire resistance, our mastic is suitable for interior use and has a long shelf life
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