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Problem Solver - Treating rusty surfaces
Other Problems
Rust forms when metals such as iron or steel oxidise through prolonged exposure to weathering. This usually occurs on exposed/untreated surfaces or where a previous coating has broken down exposing the metal.
Preparation
Remove loose surface rust using a wire brush.
Sand the surface using 70 or 80 grit abrasive paper
Wipe down to remove surface dust
If surface requires filling (where the metal is pitted), apply to a two-part filler suitable for metal surfaces. Sand the surface using a fine wet and dry paper.
Basecoat
Apply a suitable anti-rust primer and allow to dry.
Follow with an appropriate undercoat
Topcoat
Finish with an appropriate topcoat.