Pro WB Firerate

Product Description

B&L Pro WB Firerate is a one-component gun grade intumescent plasto-elastic joint sealant based on acrylic dispersions. It is formulated to not sag or slump in a correctly designed joint. It is for use in internal low movement joints.

Areas of Use

  • Interior fire-resistant applications
  • Fire-resistant jointing and sealing compound for in-situ
  • Concrete and plaster
  • Suitable for vertical and horizontal joints, not for trafficked areas.
  • Fire-resistant constructions joints in the building industry
  • Fire-resistant joints with movements up to 10%.


  • Resist the passage of fire and smoke.
  • Fire resistant up to 4 hours with PE backer rod when tested to AS1530 Part 4.
  • Intumescent in contact with fire.
  • Swells when exposed to temperatures in excess of 120°C .
  • Stays elastic and can be painted over.
  • Colourfast and waterproof after curing.
  • Very good adhesion on many porous surfaces.
  • Can be painted over after curing with water based paints.
  • Non toxic.
  • Gun grade easy to apply.

Available Colours

  • Limestone

Technical Data Sheet

Material Safety Data Sheet

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