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Automotive glossary

Body Filler

Body filler is a two-part paste used to fill small dents and shape panels before painting.

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What is Body Filler?

It is mixed with a hardener and sets quickly. It is sanded to shape after curing. Only a thin layer should be used. Fibre-reinforced fillers are used for small holes, and fine finishing putty fills pinholes before primer. Filler should never take the place of proper panel repair.

How it works

A chemical reaction cures the filler into a hard layer.

Why it matters for your car

Thick filler can crack or reveal hidden damage. Never apply filler over rust.

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