Reaction to Fire

Reaction to Fire

Our powder coatings meet strict fire safety regulations

Powder coatings are a dry powder with no solvents and therefore no harmful volatile organic compounds. The fumes, on burning, from powder coatings have very low toxicity and a low rate and density of smoke generation. Thermoplastic (acid modified polyolefin) powder coatings also have high electrical and thermal resistance, suitable for cable conduits around underground rail tracks. Powder coating is not considered as detrimental to the fire resistance of the underlying metal.

Architectural powder coating materials meet all current fire regulations, including Reaction to Fire Specification A2-s1, d0.  

All of the standard colour archiectural quality powders that we use meet all current fire regulations, including A2-s1, d0 specification. Where Reaction to Fire is a project requirement Powdertech use specific application techniques and enhanced measurement  records to evidence compliance.

Powdertech finishes, Satellite, Wood finish and Evolution have all been certified  A2-S1, d0 in September 2023. Summary documents are in the data sheet records.

Please note: i

Recent development in the specification of construction materials means that providing comprehensive and up to date information is difficult. The information on this page is for guidance only and must not be regarded as definitive. We have highlighted only the specifications relevant to architectural powder coating which should not be applied to other paint finishes. To support you we provide a list of relevant organisations at the end of this page. 

Relevant standards and achievements for architectural powder coating

Powdertech Corby's polyester-based powders all meet the following standards: 

BS 476 1989 part 6. amended May 2009. Fire tests on building materials and structures. Method of test for fire propagation for products. Achievement, class 0.

BS 476 1997 part 7. Fire tests on building materials and structures. Method for classification of the surface spread of flame of products. Achievement, class 1.

BS6853 1999 Code of practice for fire precautions in the design and construction of passenger carrying trains

        Annex B.2. Smoke emission. Achievement, pass.

        Annex D.8.4. Toxic fume emission. Achievement, pass.

EN 13501-1. Reaction to fire. Achievement, class A2-s1, d0

London Underground Engineering Standard 2-01001-002:A1. Fire Safety Performance of materials. Compliant and suitable for stations, tunnels and rolling stock (interior and exterior) TS 45545.

European community unifying standard for the rail industry. BS 476 and BS 6853 comply. Building Regulations (England), Approved Document B Fire Safety.

Relevant Organisations

The Centre for Window and Cladding Technology (CWCT) CWCT. The Studio, Entry Hill, Bath. BA2 5LY. 01225 330945

Building regulations & Building Control.

Building Control Alliance

London Underground. Transport for London (TFL)

British Standards 389 Chiswick High Road, London, W4 4AL. 0345 080 9000

Government Building Regulations

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