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    Cavity AccessoriesCavity ClosersFire Protection

    Product Type:

      Passive Fire Protection

    Market Sector:


    PFC Corofil C500 Intumescent Expansion Joint (35P)

    Product Description:

    PFC Corofil C500 Intumescent Expansion Joint provides an easy retro-fit solution to firestop existing construction joints up to 75mm thick in fire rated walls.

    Tested in accordance with BS 476:Part 20, PFC Corofil C500 Intumescent Expansion Joint provides up to 4 hours fire protection.


    • Simple to install
    • Water resistant
    • Maintenance free

    PFC Corofil C500 Intumescent Expansion Joint is a compressible strip formed by shrink wrapping a graphite based intumescent polymer to both faces of a mineral fibre core. The material is supplied in one metre lengths to suit the joint to be filled. The width of the product is dependent on the fire rating required (see fire rating table).

    The material is simply compressed by hand and is then pushed into the space. Adjacent pieces of the product are tightly butted together. There is no need to use any adhesives or intumescent sealant in conjunction with the product. In a fire, the graphite based intumescent material swells to form a hard char, which prevents the passage of fire and smoke through the joint.

    Corofil C500 Cavity Firestop is suitable for use in:

    • Blockwork cavities
    • Curtain wall / Concrete slab interfaces
    • Expansion joints
    • Structural joints


    M4 Product Table

    Encon Product Code Product Description Unit Type Quantity
    35PBC500101525 PFC C500 1Mx 10-15x 25mm INTU EXP.JOINT LEN.
    35PBC500101550 PFC C500 1Mx 10-15x 50mm INTU EXP.JOINT LEN.
    35PBC500152025 PFC C500 1Mx 15-20x 25mm INTU EXP.JOINT LEN.
    35PBC500152050 PFC C500 1Mx 15-20x 50mm INTU EXP.JOINT LEN.
    35PBC500202525 PFC C500 1Mx 20-25x 25mm INTU EXP.JOINT LEN.
    35PBC500202550 PFC C500 1Mx 20-25x 50mm INTU EXP.JOINT LEN.
    35PBC500253025 PFC C500 1Mx 25-30x 25mm INTU EXP.JOINT LEN.
    35PBC500303550 PFC C500 1Mx 30-35x 50mm INTU EXP.JOINT LEN.
    35PBC500505550 PFC C500 1Mx 50-55x 50mm INTU EXP.JOINT LEN.