No Fuel No Fire
Dilution of Fuel
An inexpensive category of flame retardant is actually introduced to the plastic for a different reason. Many plastics are manufactured with as much as twenty percent filler. The most common filler is calcium carbonate and another is talc. The calcium carbonate is added to make the production of the plastic less expensive, but it does have the added benefit of providing some flame retardant properties.
The way that the dilution agent works as a flame retardant is that is lowers the percentage of combustible material in the finished product. If there is less combustible material then there is less fuel for the fire. Less fuel means it could burn itself out more quickly. Hence and unsurprisingly, the industry calls this method of fire protection dilution of fuel.
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