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Amotherm Wood 450 SB

Dual-component solvent-based polyurethane fire-proofing treatment for wood

Transparent dual-component polyurethane fire-proofing treatment designed to reduce the reaction to fire of items in wood or its derivatives, to be used for the treatment of wall or ceiling-mounted matchboarding, wooden furniture and fittings, scenography, stands, etc. Rated according to Italian and EU directives.
Product information

Technical features

  • Extremely hard
  • Protects against scratches and abrasion
  • Stain-resistant
  • Quick hardening
  • Transparent
  • Available in different degrees of gloss


Transparent dual-component polyurethane treatment used to reduce the reaction to fire of wooden furniture and fittings. Also used to reduce the reaction to fire of items made of wood or its derivatives, for example matchboard laid on walls or ceilings, in industrial environments.

Drying time

  • Basecoat
     - Dry to the touch 20’
     - Ready for sanding down 4 hours
     - 12 hours at depth


  • Topcoat
     - Dry to the touch 15’
     - Ready for sanding down 2 hours
     - 8 hours at depth


300 g/m2 of Amotherm Wood 450 SB completed by 150 gr/m2 of Amotherm Wood 450 Top SB.

Recommended treatments

  • Amotherm Wood 450 SB catalysed 2:1
  • Amotherm Wood 450 Top SB catalysed 1:1

5 + 2.5 Kg
10 + 5 Kg

2.5 + 2.5 Kg
5 + 5 Kg
10 +10 Kg

- Rated Class Bs1d0 according to EN 13501 – 1
- Tested according to EN 13823 and EN 11925 - 2
- Rated Class 1 according to UNI 9796/90

  Technical data sheet
functional specification modules

Supply and application of Amotherm Wood 450 SB solvent-based fire-retardant paint, so that wooden claddings for walls and ceilings comply with European fire-reaction rating class B-s1, d0 (EN 13501-1).
The fire proofing treatment must be carried out by spraying or brushing, or by using a roller, a curtain coater or an airless pump, applied at any height, either vertically or horizontally and/or at any angle.
The preparation varies according to the type of surface to be treated. More specifically:

• New raw timber surfaces must be cleaned of any impurities, particularly if they are made of exotic wood, and washed down with nitro thinner to eliminate any resin.
• Old, previously varnished wooden surfaces should be thoroughly sanded down to remove paint residues that are not perfectly anchored to the surface.
Treatment consisting of Amotherm Wood 450 SB (component A + component B) and Amotherm Wood 450 Top SB (component A + component B)
Normal consumption: 300 g/m2 of primer + 160 g/m2 of topcoat - Total 460 g/m2

Cost of material and application by spraying including intermediate sanding between the two base coats and the topcoat (excluding scaffolding and any preparation of the surface):
• Amotherm Wood 450 SB: € 21,00/m2 (treatment with normal consumption)
Download application specifications in PDF format