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ARE POLYESTERS HAZARDOUS?

April 26, 2017hazardous polyesters

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ARE POLYESTERS HAZARDOUS?

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YES. They are classed as CAT 3.3 which means of relatively low hazard but that they need to be treated with care. Polyester resins are dissolved in styrene which is the source of the hazard. Styrene is inflammable (Flash Point 32 deg. C) and is classed as an irritant. Styrene has no known health effects associated with it but it has a very strong smell which most people can detect at very low levels. You should always use polyester resins in a well ventilated area.