Fix stone chips before winter: salt, frost and rust
Road salt, moisture and frost turn small stone chips into rust. Where to look, how to repair chips before the cold, and how to protect your paint all winter.
A stone chip looks harmless in autumn. By spring it can be a rust spot. Winter is the hardest season for small paint damage, and a few minutes of work before the cold arrives saves a much bigger repair later.
Why winter makes stone chips worse
Your car's paint is a barrier between the metal and the weather. A stone chip breaks that barrier. In summer, an open chip mostly just looks bad. In winter, three things work on it at once:
- Road salt. Salt on winter roads mixes with water and speeds up corrosion on any exposed metal.
- Moisture. Rain, snow and slush keep the chip wet for days at a time, and it rarely dries out completely.
- Frost. Water that gets under the edge of the chip can freeze and expand, lifting more paint around it.
The result: rust that starts in the chip and creeps under the surrounding paint. Once it spreads under the paint, touch-up alone is no longer enough.
Where to look
Stone chips collect where the car meets the road first. Check the front of the hood, the front bumper, the leading edge of the roof, the area behind the wheels and the lower edges of the doors. Wash the car first; small chips are easy to miss on a dirty panel. A torch held at an angle helps.
Repair them before it gets cold
Touch-up paint needs the right conditions to flow, level and dry properly. Aim for about 10 to 30°C and a dry day, and work in the shade or in a garage. In cold or damp weather the paint dries slowly and unevenly. If it is already cold outside, a dry, heated garage is the best place to work.
The basic steps:
- Wash the spot with soap and water and dry it completely.
- Wipe it with a little Correct Clear on a cloth to remove wax and residue.
- If there is rust in the chip, remove it first and prime the bare metal. Primer is not part of the kit. See Deep scratches and rust.
- Shake the paint for at least a minute and dab thin layers into the chip, 10 to 15 minutes apart.
- Level the repair with Correct Clear.
Our step-by-step guide and 10 tips cover every step in detail.
After the repair: let it cure
Fresh paint is soft. Wait 24 hours before the finishing paste, wash the car by hand after one week, keep the pressure washer away from the repair, and wait 30 days before waxing the whole car. If you can, give the repair a few days indoors before the first salty roads.
Winter care that protects your paint
- Rinse the car regularly in winter, especially the lower panels and wheel arches, so salt doesn't sit on the paint.
- A coat of wax before winter, on fully cured paint, gives the surface extra protection.
- Check the front of the car again after a few weeks of winter driving. New chips are easier to fix when they are fresh.
When touch-up is not enough
If the paint is lifting in flakes, if rust has spread under the paint, or if the damage is larger than a coin or the panel is dented, take the car to a body shop. Touch-up paint is made for chips and scratches.
Ready before the cold arrives? Find your paint code and get your color mixed to order.