Most body fillers consist of a thermosetting unsaturated polyester in a solvent which is mixed with a reactive hardener. Hardeners are usually skin irritants and some are strong skin sensitisers – both can cause dermatitis.
Lead has historically been used in some body preparation operations, and although the temperature at which the alloy is applied is usually not high enough to generate large quantities of harmful fume, subsequent finishing by powered discing and sanding can release high concentrations of fine dust which is a serious health hazard.
To minimise the number of people exposed to dust and fume, separate the body filling and preparation area away from other work. Keep dust to a minimum. Large excesses of filler can be removed using coarse hand files. For powered discing and sanding, use tools with built in extraction or local exhaust ventilation.
