Road Salt Season: What Winter Actually Does to Your Paint

Winter doesn't hurt your paint in one big hit. It wears it down a little on every drive: salt, sand, slush and grit hitting the front of the car at highway speed, then sitting there for days. Here's what's actually going on, and what's worth doing before the first storm.

Road treatment isn't just salt

Depending on where you live, the roads get rock salt, liquid brine, sand, or a mix. Brine sticks to everything and dries into a film you won't see until the car is clean. Sand and grit get thrown up by the car in front of you and hit your bumper, hood and mirrors the same way gravel does in summer, just more often, and usually when the paint is cold and the road is wet.

Chips are the real problem

Salt on intact paint is mostly a cleaning issue. Salt on a chip is a rust issue. Once a stone takes a chip down to bare metal, moisture and salt have a way in, and the front edge of the hood and the leading edge of the bumper take the most hits. That's why the front end of a three-year-old car in a snow state usually looks older than the rest of it.

What actually helps

• Protect the impact zones before the season starts. Paint protection film on the bumper, hood, fenders and mirrors takes the chips instead of your paint. Install it in mild weather. Film and adhesive work best when it isn't freezing, so fall is the window.
• Wash more often than feels necessary. Rinse the front end and the lower panels whenever temperatures let you, especially after a storm. Brine you can't see is still working.
• Don't forget underneath. Wheel wells and lower rocker panels collect the most slush. An underbody rinse is worth it.
• Touch up chips now, not in spring. A dab of touch-up paint on a fresh chip keeps salt off bare metal for the season.

Where pre-cut film fits

A pre-cut kit is cut to your exact vehicle, so there's no trimming on the paint. The front end is where most of the winter damage happens, and it's also the easiest place to start. If you've got a mild weekend left this fall, that's your install window.

Bottom line: winter damage is slow, cumulative and mostly preventable. Protect the front end, keep it clean, and fix chips before they turn into rust. Find the kit for your vehicle in our PPF Kits collection.