Halogen Free

Flame retardant materials that do not contain halogens as part of their inherent (molecular) composition or as flame retardant additives are defined as halogen free. Halogen-free additives are used most often to impact flame retardance to polyolefin-based polymers that are not inherently flame retardant. Commonly used halogen-free additives are aluminum trihydrate, magnesium hydroxide and phosphorous-containing compounds. Halogen-free materials may be specified when a low risk of release of halogenated species is desired in a fire situation with respect to smoke, corrosivity or environmental impact.