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Amotherm Gyps WB

One-component water based intumescent coating for the passive fire protection of plasterboard walls

Amotherm Gyps WB is a quick solution for the passive fire protection of plasterboard wall elements. Quick application, easy transport and cleaning, quick certification process.
Water based
Product information

Technical features

  • Once in place it looks like a normal water-based paint
  • It does not alter the aesthetics of the element
  • Easy to use
  • It does not add weight to the geometry of the structural element to which it is applied
  • For interior use
  • Odourless



Specifically designed for fire-protection of plasterboard elements.  

Drying time

  • 6 – 12 hours at surface
  • 24 – 48 hours at depth


Depends on the structural element to be protected and the technical performance required.

Recommended treatments

  • 1 x Amotherm Gyps Primer WB
  • Amotherm Gyps WB multiple coats (according to performance chart)
  • 1 x Amotherm Gyps Top WB for coloured cycles 


Base 10 – 20 kg



Rated according to EN 1364 – 1; tested in an European accredited laboratory.


Try our special Kit AMOTHERM GYPS WB!

Convenient and handy, easy to transport, reduced space requirements. A clever Amotherm solution for the protection of small areas is our ready to use kit consisting of two fitted drums of base and primer.
Our kit protects:
- 10 m2 of plasterboards classified EI 60
- 12 m2 of plasterboards classified EI 90
- 8 m2 of plasterboards classified EI 120

  Brochure Amonn
  Technical data sheet
functional specification modules

Supply and application of Amotherm GYPS WB water-based intumescent paint for protecting plasterboard walls from fire with standard sheets as required by standards UNI EN 1364-1:2002 and UNI EN 1363-1:2001.
The fire proofing treatment must be carried out by spraying, brushing, using a roller or with an airless pump, applied at any height, either vertically or horizontally and/or at any angle.

The preparation of the under-surface will vary depending on the type of surface to be treated. More specifically:

• new walls must be cleaned of any impurities and treated with Amotherm GYPS Primer WB (0.1 kg/m2). existing walls with old paint must be thoroughly cleaned to eliminate any paint residues that are not perfectly bonded to the surface, and then treated with Amotherm GYPS Primer WB.

The quantity of intumescent paint to be applied to the walls to be protected will depend on:

• the fire-resistance class EI
• the wall section (stratigraphy, composition)
For indoor applications, where there is damp and heavy condensation, we recommend applying Amotherm GYPS Top WB acrylic topcoat.

Intumescent paint with environmental certification EPD according to ISO EN 14025 and EN UNI 15804 (environmental label type III) as required by Article 34 of the new Public Contracts Code defined by Legislative Decree No. 50 of 18-04-2016 and updated by Legislative Decree No. 56 dated 19-04-2017.

Guideline costs of materials and application (excluding scaffolding and any preparation of the surface):
• Amotherm GYPS Primer WB: € 4,00/m2 (100 g/m2)
• Amotherm GYPS WB paint: € 19,00/m2 (1kg/m2)
Download application specifications in PDF format

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