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Paint chip and corrosion guide

Stone Chips and Rust Risk

A stone chip can expose different layers of the paint system. The priority changes when primer, metal, loose paint or rust staining is visible.

Quick answer

Arrange a workshop assessment when a chip exposes primer or metal, shows rust staining or has loose paint around the edge. The workshop can then decide whether local treatment or a wider finish route is appropriate.

Why chip depth matters

A chip can sit in the clear coat, reach colour, expose primer or reveal metal. Each level changes how the affected area needs to be prepared and protected.

The workshop checks the chip edge and surrounding paint as well as the centre of the mark.

  • Grey primer or exposed metal
  • Rust staining
  • Paint lifting around the chip
  • Clusters of chips on a forward-facing panel

The next step after a chip inspection

An isolated chip can require a different approach from a heavily affected bonnet edge or bumper. The assessment defines whether targeted treatment, SMART repair or a broader paint route should be discussed.

Do not rely on a touch-up product to diagnose depth or corrosion risk.

Frequently asked questions

Can a stone chip cause rust?

A chip that exposes underlying material or has loose paint around it needs a workshop assessment so the repair route can be chosen.

Do all stone chips need professional repair?

The chip depth, panel condition and visible edge determine the appropriate next step.

Can a chip be part of a wider paint issue?

A cluster of chips or deteriorating surrounding paint may require a wider assessment than one isolated impact point.

IQ Tyres is temporarily closed

Following a serious fire at our Mitcham garage, we cannot currently accept vehicles, bookings or workshop visits. Please see the closure update before travelling.

Existing matters07904 962265