Aithon A90H

The BS EN 13381-3 regards the fire resistance of concrete structures and the performance of the intumescent coatings applied on concrete are expressed in terms of equivalent concrete thickness.

The method defines the quantities (in gr/m2 ) of intumescent coating required to achieve the same insulation performance provided by different thicknesses of concrete.

The calculation of the equivalent concrete thickness required for slabs and walls exposed to fire on one side is based on fire test results achieved on loaded slabs having minimum (500 gr/m2 ) and maximum (2035 gr/m2 ) applied quantity of intumescent coating. Linear interpolation between minimum and maximum is allowed.

AITHON A90H has a smooth, matt-white finish and does not need a top coating if that’s the look you require, even at higher humidity, low-temperature environment (classified Y according to ETAG 18-2).

But if further decoration is required on your project, AITHON A90H has a suitable range of topcoats providing satin or matt finishes in the full RAL colour range.

Aithon has over 30 years of experience in research and development of intumescent coatings.

Using the highest quality raw materials, it means you get a long-life guarantee and the highest level of integrity.

Waterborne, halogen-free, low VOC content, Aithon A90H protects concrete as well as the environment.

Thanks to its very low emissions to the environment, A90H is approved for the fire protection in clean rooms (Outgassing tests at 40°C: 2,6 μg/g).

This makes it the perfect choice for every type of construction project or building which has occupants such as hospitals, offices, schools and residential.