We don’t cover rust.
We remove it first.
Most shops spray undercoating right over corrosion — sealing the problem in. We do it the hard way: hours of grinding, an acid wash, then a coat of KS‑500, a proprietary German bitumen compound that’s one of the best rust inhibitors on the market. Every vehicle on our lot gets it.
Road salt is eating your undercarriage.
Connecticut treats its roads with salt and liquid chloride brines every winter. They keep you moving — and they cling to your frame, brake lines, and suspension components long after the snow melts, corroding steel from the inside out.
The damage is invisible until it isn’t. By the time rust shows on a rocker panel, it’s usually been working on the frame for years. That’s why we treat the undercarriage of every vehicle we sell — and why we’ll do yours too.
Three steps. No shortcuts.
Spraying over existing rust just hides it while it keeps spreading. Our process attacks the corrosion first — that’s the difference between a coating that lasts and one that peels off in two winters.
Mechanical Rust Removal
Our technicians spend hours under each vehicle grinding away existing rust and scale from the frame, crossmembers, and suspension components — down to sound metal wherever possible. It’s slow, dirty work, and it’s the step most shops skip entirely.
Acid Wash
After grinding, we acid wash the undercarriage to neutralize remaining surface corrosion and etch the metal clean. This gives the coating a properly prepped surface to bond to — the difference between paint-on protection and real adhesion.
KS‑500 Bitumen Coating
Finally, we spray the entire undercarriage with KS‑500 — a proprietary German bitumen compound and one of the best rust inhibitors on the market. It seals the prepped metal in a tough barrier that stands up to salt, brine, moisture, and stone chips winter after winter.
Toyota Tacoma — start to finish
Tacomas are famous for frame rust. Here’s one that went through our full process. Click any photo to see it full size.
Before
During — grinding & prep
After — KS‑500 applied
2006 Chevy Silverado undercoating
A 15-plus-year-old Connecticut truck — exactly the kind of undercarriage salt loves. Same process, same result.
Before — as it came in
After — fully coated
Protect it before the next winter.
Whether you bought your vehicle from us or not, our technicians will grind, wash, and coat it the same way we treat every truck on our lot. Appointments fill fast once the temperature drops.