Fontefire WF - intumescent for wood


  • For interior wooden surfaces.
  • Suitable for use both on exterior claddings and interior panels as part of fire protection paint systems.


A water-based, intumescent coating which expands and forms an insulating layer of foam when subjected to heat.

The product has fire reaction class B-s1, d0, as per EN 13501-1:2007+A1:2009, the highest possible for wood material.

A separate wood preservative is not required. This product contains fungicides and can be used directly on the wood surface, protecting it against mould, algae and other microbes.

Features and benefits:

  • Volatile organic compound (VOC) levels: Ultra-low (5–49 g/L).
  • Theoretical cover rate: 3.3 m²/L at 140 μm.
  • Thinner: Water.
  • Touch dry: Five minutes at 50°C, relative humidity: 50%.
  • Recoat time: One hour at 50°C, relative humidity: 50%.

General information




Uniclass 2015

Pr_35_31_68_43 Intumescent protective coatingsPrimary


M61/110 On-site coating to primed steel

M61/115 On-site coating to galvanized steel

M61/120 On-site coating to existing steel

M61/140 On-site overcoating to existing steel

M61/150 Off-site coating to unprimed steel

M61/160 Off-site coating to primed steel

M61/170 Off-site coating to galvanized steel

Specification data - Intumescent protective coatings Enhanced data


Water-based intumescent.


Light grey.

Product Reference

Fontefire WF - intumescent for wood

Tin size

20 L.

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