Established in 1960 Mackin’s Concrete is an experienced family run business we are a specialist concrete manufacturer we pride ourselves in high quality products supplying both builders and farmers with everything from lintels to cattle slats.


Fire Retardant (B1) Expanding Foam


Code: 744
Description: Fire Retardant (B1) Expanding Foam

Detailed Description:

Larsen Fire Retardant Expanding foam is a one component polyurethane foam which is designed to make a fire retardant seal between ‘stony’ construction parts.

It is used to produce a high quality rigid polyurethane foam which bonds, seals and insulates most construction materials offering a fire rating of up to 80 minutes. The cured foam is resistant to most chemicals.

  • Excellent seal against smoke and gas
  • CFC free
  • Excellent adhesion
  • Tack free in 15min
  • Flammability Class B1 (DIN4102)

Pack Size - 750 ml aerosol can