Fire Rated Intumescent Acrylic Mastic



Abesco CP310 FR Acrylic Intumescent Mastic is designed to prevent the spread of fire from one compartment to another wherever services penetrate separating walls and floors, or wherever a gap remains between elements in fire rated constructions, walls or floors, and provides up to 4 hours fire resistance.

Abesco CP310 FR Acrylic Intumescent Mastic is a single part water based acrylic mastic, which provides a firm but flexible seal to joints in a variety of fire rated structures. It will not support combustion, and when exposed to fire it forms a carbonaceous char which expands to effectively seal any gaps, preventing the spread of smoke and fire through any joints.



  • Up to 4 hours fire resistance
  • Suitable for most substrates
  • Easy to use & finish
  • Halogen free
  • Cost effective




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