Living in Wisconsin means your vehicle faces harsh conditions like winter road salt, rain, and humidity—all of which accelerate rust and corrosion.
At Coulee Auto, we make rustproofing simple and stress-free for drivers in La Crosse, WI, and nearby areas like Onalaska, Holmen, and West Salem. Our trained technicians use Krown Rustproofing to provide maximum protection in minimal time, so you can get back on the road quickly. Whether you’re scheduling routine maintenance or protecting a new vehicle, we offer flexible appointments and fast service tailored to your needs. Drive with confidence knowing your vehicle is shielded from rust and corrosion all year long.
Scientifically proven to reduce rust by up to 6.8 times compared to untreated vehicles.
Treated vehicles proven to have 3.6 times less underbody corrosion than untreated ones
Backed by research showing improved protection as vehicles age.
Krown Rustproofing is an advanced anti-corrosion treatment that penetrates deep into your vehicle's seams, joints, and hard-to-reach areas to protect against rust. Unlike traditional undercoating, Krown’s unique formula actively displaces moisture and creates a long-lasting barrier, preventing rust from forming at its source. This eco-friendly, non-toxic solution is safe for your vehicle and the environment, making it the trusted choice for rust protection.
Looking for more information about Krown Rust Protection?
University research demonstrates the benefits of Krown Rust Control treatments
Penetrates deeply into crevices for maximum coverage.
Prevents rust and corrosion caused by salt, moisture, and road debris.
Safe for all vehicle types, including hybrids and electric cars.
Does not crack, peel, or trap moisture like some undercoating products.
Krown Rustproofing is specially designed to protect vehicles from the damaging effects of rust and corrosion caused by moisture and salt. Its advanced formula penetrates deep into seams, joints, and hard-to-reach areas, providing lasting protection where traditional coatings can’t. Unlike other treatments, Krown doesn’t just coat the surface—it actively displaces moisture, preventing rust from forming at its source. Ideal for La Crosse’s winter conditions, this eco-friendly treatment keeps your car, truck, or SUV safe from rust while protecting the environment.