fromWIRED
1 day agoWhat You Should Know About Fiberglass and Chemicals in Flame Retardant Mattresses
Fiberglass has been the fire barrier of choice for many a mattress for a long time. You can usually find it in one of two places: the mattress cover, or a thin internal sleeve that's usually called a "fire sock." Fiberglass is very good as a flame retardant since it won't burn and has an extremely high melting point, 2,237 degrees Fahrenheit. It's a cheap material that's easy to integrate into a mattress.
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