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The fire retardant is applied under pressure at a wood treating plant like the preservatives described above, or applied as a surface coating. In both cases, treatment provides a physical barrier to flame spread. The treated wood chars but does not oxidize.
Fire-retardant materials should not be confused with fire-resistant materials. A fire resistant material is one which is designed to resist burning and withstand heat . An example of a fire-resistant material is one which is used in bunker gear worn by firefighters to protect them from the flames of a burning building.
A MAFFS-equipped Air National Guard C-130 Hercules drops fire retardant on wildfires in Southern California Red-dyed line of fire retardant stands out clearly on this Arizona hill, to control the Alambre Fire. Early fire retardants were mixtures of water and thickening agents, and later included borates [11] and ammonium phosphates. [citation ...
Wood can be treated with a preservative that improves service life under severe conditions without altering its basic characteristics. It can also be pressure-impregnated with fire-retardant chemicals that improve its performance in a fire. [35] One of the early treatments to "fireproof lumber", which retard fires, was developed in 1936 by the ...
Other types of plywoods include fire-retardant, moisture-resistant, wire mesh, sign-grade, and pressure-treated. However, the plywood may be treated with various chemicals to improve the plywood's fireproofing. Each of these products is designed to fill a need in industry. Baltic Birch plywood is a product of an area around the Baltic Sea.
Typically, their undergarments beneath the heavier fire-resistant gear are made of flame-retardant cotton or another breathable, organic fabric that has been treated to resist ignition. [ 20 ] Polymers containing nitrogen , sodium , and phosphorus atoms can work as materials for fire-resistant cellulosic textiles, such as cotton or rayon .
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