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Intumescent paints for timber and wood derivatives are available in Water and Solvent based forms with fire ratings of up to 60 minutes, British Class 0/1 and Euroclass B. Utilising thin film intumescent technology the paints are able to give a highly decorative finish for use internally and Externally. On external wooden cladding where a Euroclass B rating is applicable, we recommend that an impregnation flame retardant is used in place of an intumescent paint.
Intumescent and flame retardant products come in 3 forms:
– Pigmented paints – Up to 60 minutes rating, Class 0 and Euroclass B
– Clear Varnishes – Up to 60 minutes rating, Class 0 and Euroclass B
– Clear impregnation treatments – Class 0 and Euroclass B
Intumescent Wood paints are what we refer to as “Reactive Paints”. When the paint is subjected to heat it will react. In the case of an intumescent paint when subjected to temperatures exceeding 120°C the paint will intumesce (Swell up to 50 times the thickness of the paint) and form an carbon layer (Char) which thermally insulates the timber substrate slowing down the timber Char rate and increasing the burn through time. We offer products to fire protect timber cladding on buildings which require a Euroclass B or Class 0/1 surface spread of flame. These products are used slow down the spread of fire in a building which aids peoples escape. In a fire it is critical that the structural timber frame and cladding internally and externally of the building is protected correctly so that the timbers do not burn/char away leading to premature failure.
In Summary, Intumescent timber paint thermally insulates structural and NON structural timber in a fire, slowing down the spread of fire and stopping premature collapse of the building.
For details regarding our paints finishes, listings, approvals and compliance, please get in touch, or contact our technical department on 01752 690997
All of our products that we sell are fire tested to British and or European standards, Intumescent paint for Timber use the following standards:
– European Union: EN 113823 B,s1,d0
– European Union: EN 111925-2 SBI
– United Kingdom: BS 476-20/22 30 and 60 minute fire rating
– United Kingdom: BS 476-6/7 Surface spread of flame Class 0/1
Intumescent paints are the most common form of fire protection to timber, this is because of how widely available the products are and how cheap they are. At International Passive Fire Ltd we have a whole department set up to deal with Specifications and Estimations for Intumescent timber Paint. Our technical specification and estimating department consists of over 50 years of combined experience in the structural passive fire protection field and is completely independent of all manufacturers. Also, all of our work is free of charge (FOA).
We aim to give all customers whether big or small the same high value service and back up to ensure that all jobs are completed and certified on time. We can help you when applying intumescent paint to wood to ensure the process is smooth and easy and to guarantee that the paint will give the correct fire protection required.
Please follow the manufacturer’s instructions and spreading rates when applying intumescent paint to timber.
With clear wood intumescents a topcoat is needed to stop them turning milky in colour.
For all external wood jobs, two coats of a topcoat are necessary to protect the intumescent from the environment.
With over 50 years of combined experience in the passive fire protection industry, International Passive Fire Ltd provides independent estimating services for all intumescent coatings/paints for timber and wood derivatives.
Call our technical department on 01752 690997 to discuss our free estimating and specification services.
