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CP310 FR Intumescent Acrylic Mastic

Category: Mastic and Foams

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.

CertificationWhy useWhere to useWhat happens in a fire
  • EN 1366-3
  • BS 476-20
  • ASTM E-814 (UL1479)
  • AS 1530-4
  • Can be used with Abesco FR Boards to provide a versatile and cost effective fire stopping system for multiple service penetration seals
  • Fast Cure - tack free in 75 minutes
  • Halogen Free
  • Very easy to install and finish
  • Excellent Slump Resistance

Abesco CP310 FR Acrylic Intumescent Mastic is suitable for use in most buildings which have gaps or joints in, or where services pass through, fire rated compartment walls and floors.

Typical types of building where  Abesco CP310 FR Acrylic Intumescent Mastic  is commonly used are:

Flats and apartment blocks, Hotels, Prisons, Office blocks, Hospitals, Airports, Retail centres, Industrial Buildings, Plant Rooms, etc.

Abesco CP310 FR Acrylic Intumescent Mastic can be used in walls or floors.

When exposed to the heat of a fire, the intumescent material contained in the Intumescent Mastic expands to fill any small gaps, thereby maintaining the integrity of the seal and preventing the spread of fire from one compartment to another.



Abesco products can be manufactured to meet project specific requirements where standard production specifications may not fulfil all a clients needs. Abesco operates its own fire test furnace and project specific fire testing can be arranged for particular site configurations. Contact us for more details.


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