{"id":1145,"date":"2020-01-27T16:08:00","date_gmt":"2020-01-27T16:08:00","guid":{"rendered":"http:\/\/businessarch.co.uk\/zone\/?p=1145"},"modified":"2021-08-23T17:04:36","modified_gmt":"2021-08-23T17:04:36","slug":"intumescent-paint-explained","status":"publish","type":"post","link":"http:\/\/businessarch.co.uk\/zone\/2020\/01\/27\/intumescent-paint-explained\/","title":{"rendered":"Intumescent Paint Explained"},"content":{"rendered":"\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t\t\t
<\/div>\n\t\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t

Intumescent Paint Explained<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t
\n\t\t\t\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

What is intumescent paint? Fire protection paint explained.<\/strong><\/h1>\nWhen a fire breaks out it can take just minutes to spread and the effects can be devastating. Intumescent paint slows the effects of fire on steel structures, creating an expanding insulation layer when activated by extreme heat. <\/strong>\n\nIn a fire every second counts. Heat, fuel, and oxygen are all it takes for a blaze to ignite and once fire takes hold it grows fiercer by the minute, threatening to destroy anything in its path. In fact, fire can reach around 500 degrees Celsius in just five minutes – a temperature hot enough to weaken structural steel – one of the most commonly used construction materials.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t

That's where intumescent paint comes in.<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

Intumescent paint is an industrial paint specially formulated to react to heat. When applied to steel it forms a protective coating that keeps the steel sections below their critical failure temperature, preventing them from bowing in the heat of a fire.<\/p>

In Britain, intumescent paint is now a legal requirement when using steel in the construction of commercial and industrial buildings. Its application is highly technical and, as such, the process requires an intumescent spraying contractor who can apply the coating to the correct specifications to ensure compliance. \u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"intumescent\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Protecting\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t

If steel is susceptible to heat damage, why build with it?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

No construction material is immune to the effects of fire. Under extreme heat, concrete will crack, clay bricks will melt, and we all know how wood reacts to flame. Steel, which responds to heat at a much higher temperature, has one of the best strength to weight ratios of any construction material, which is why it\u2019s so widely used in commercial buildings like airports, shopping centres, and office blocks.<\/p>

As well as its strength, steel has many other inherent qualities that make it ideal for large infrastructure projects. It\u2019s highly durable, can be assembled quickly, requires less excavation and is efficient in all seasons. In earthquake-prone territories, steel structures are highly resilient. Steel can also be melted down and recycled at the end of its life making it more environmentally friendly than other construction materials.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t

What\u2019s intumescent paint made from?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

At first glance, intumescent paint may look and behave much like any other commercial paint on the market, with water-based and solvent-based options being available. Generally, only produced in white, a compatible top seal can also be applied to provide additional durability and colour. \u00a0<\/p>

it\u2019s the make-up of its unique chemical composition that sets it apart though as Intumescent paints contain chemicals that react when exposed to heat and impede heat transfer. It\u2019s for this reason that intumescent paints are sometimes referred to as fire-resistant paints or fire protection paints.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Intumescent\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Intumescent\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t

How does intumescent paint work?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

Intumescent paints are essentially dormant until they\u2019re activated by heat. This reaction usually occurs at temperatures exceeding 200 degrees Celsius.<\/p>

When the paint heats up it expands to form a protective char layer that completely surrounds the steel beam. This layer can grow up to 50 times the original thickness of the paint layer applied and protect the steel for up to 120 minutes. During this time the area around the steel is starved of oxygen and the char layer insulates the steel, preventing it from reaching its critical failure temperature.<\/p>

This buys valuable time for anyone in the building to escape and for the fire to be brought under control. All the while keeping the steel structure at a temperature that doesn\u2019t compromise its integrity.<\/p><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t

How is intumescent paint applied?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

Intumescent paint is applied as a spray coating directly to the steel beam or column. In most cases, especially with galvanised steel, the surface is cleaned and a primer first applied before application of the intumescent basecoat. Once the intumescent paint is dry a compatible topcoat may also be added. This doesn\u2019t compromise the integrity of the product in any way.<\/p>

Generally, it\u2019s the job of a professional spraying contractor to apply the intumescent coating to the necessary specification and loadings. It is recommended that the application takes place on-site once the beams are in situ, thus ensuring an even finish that includes all bolts, or the steel can be pre-sprayed off-site. The former achieves a better aesthetic finish.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Commercial\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Curtain\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t

How much does intumescent spraying cost?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

There is no \u2018one size fits all\u2019 rule when it comes to intumescent spraying. Each project is unique and as the practice is highly regulated in the UK compliance is vital.<\/p>

The cost of intumescent spraying will be determined by a number of factors:<\/p>