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Thursday, 09 July 2020
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Raw materials & technologies, Raw materials, Coatings fillers

Intumescent coating developed with firebrake ZB and talc performance

Wednesday, 19 May 2010

Replacing boric acid in the formulation with firebrake ZB offers significant advantages in flame retardancy by reducing the heat release rate and other steps.

An experimental study was conducted to determine the potentials and advantages of using Firebrake ZB and talc products in epoxy based intumescent coating applications. The results show that replacing boric acid in the formulation with Firebrake ZB offers significant advantages in flame retardancy by reducing the heat release rate and substrate temperature, and increasing char thickness. The application of talc in the formulations containing Firebrake ZB was found helpful in improving the coating properties, formulation cost, and flame retardant performance compared to the boric acid based formulations. Frederic Jouffret from Rio Tinto Minerals will present more details about the development at the European Coatings Conference "Fire Retardant Coatings IV" on 3 and 4 June in Berlin.

Intumescent coatings with talc Source: Fotolia Salmone

Intumescent coatings with talc Source: Fotolia Salmone

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