What is ablative coating and what is it used for? Product Information

Ablative coating is primarily used to repair damage or cracks in a fire batt. The coating is applied to these areas to reinstate the fire-resistance performance of the product.

In other cases, it can be used as part of a tested firestopping system and applied to individual services where they penetrate compartment lines to assist with the fire-resistance performance.

Ablative coating is a water-based coating that can be applied by brush or spray. It has elastomeric and fire-resistance properties. At standard temperatures, it remains flexible, enabling thermal and mechanical movement of penetrating services.

During a fire, it resists the spread of fire and smoke, working as an insulated barrier to protect nearby components.

Occasionally, ablative coating and intumescent paint are mistaken as the same product.

The main difference is that intumescent material expands when exposed to heat, which is why intumescent paint is sometimes referred to as ‘reactive paint’.

While both products are used for fire protection, intumescent paint reacts to high temperatures exceeding 120°C. Compared to ablative coating, it could swell up to 50 times thicker than the paint’s original thickness. Intumescent paint can be used for steel, timber, and plaster.

If you have any further questions about ablative coating, please don’t hesitate to contact us at technical@quelfire.co.uk.

QuelStop Ablative Coating Tub

QuelStop Ablative Coating from Quelfire

Learn more about the features and benefits of our QuelStop Ablative Coating and the scope of application we have here at Quelfire.

Darryl Wells

This question was answered by Darryl Wells

Commercial & Development Director

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