Intumescent Mastic
Intumescent Acrylic Mastic 310ml
A halon-free, intumescent mastic with good adhesion to all materials. Available in standard
colours brown, grey, and white (other colours available). Supplied in 310 ml tubes.
U S E
For fire stopping gaps from 1mm up to 60mm wide. For wider gaps, fit Product 40 (fireproof
sponge) into the gap first. After application, a skin forms that allows painting, but the material
stays permanently flexible. It is a low-pressure material with good cooling ability for metals,
and expands up to five times its volume in a fire. Ideal for use horizontally or vertically
around exit door frames, cable trays, ducting, and partitions.
P E R F O R M A N C E
This product has been used in numerous fire resistance tests employing the general procedures
and criteria of BS476 Part 22 (1987). Integrity ratings of up to 249 minutes were
achieved. Also tested to European Standard EN1363-1 (2000), achieving 126 minutes.