Premanufactured intumescent fire protection: Aesthetics, performance, application flexibility

From D+D Online, July 2010

by Bill Dempster, International Paint LLC

The recent development of premanufactured intumescent fire protection for architectural applications can deliver a number of important advantages, including the aesthetic qualities of thin-film fire-protective materials, flexibility in on-site application, and fire-protective performance that is equivalent to spray-applied epoxy intumescent coatings....
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Tagged categories: Coatings Technology; Fire-resistive coatings; Intumescent

Comment from Stephen Falk, (8/5/2010, 9:49 AM)

While this appears to be a fantastic solution to the "rough" thin film fireproofing, it appears to not be cost effective in that cost of protection during shipping, erection and field protection may offset the initial savings. Has anyone done a fair cost comparison between the factory application and the field application?

Comment from Bill Dempster, (8/5/2010, 10:10 AM)

Great comment Stephen and let me clarify a key point. The intumescent castings are factory manufactured, shipped to the project site and then installed in the field. The castings are not installed at the fabrication or coating plant. However, the field savings can be significant due to installation speed, "dry" applcation vs. spraying wet paint and scheduling logistics. You can have multiple trades working simultaneously vs. sequentialy. So, this solution satisfies the architectural requirements and works with the GC to save time and money.

Comment from Miguel Núñez, (9/14/2010, 6:41 AM)

Dear Bill. There is a question regarding this method. When the fireproofing is applied on site by plural pumps or trowelled, the adhesion to the primers is ensure by the curing reaction, and is almost tested, but with that nethod how is adhesion requirements ensured?, just by the adhesive strenght? And regarding the installation, when is a comercial profile ( HEB, U profiles,...)welded to a deck plate, there is no many join areas that may be debilite the system? The method is a good practice to take in consideration by Offshore fabricators.

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