We aim to show you accurate product information. Manufacturers,
suppliers and others provide what you see here,
and we have not verified it.
Provide ultimate protection to the undercarriage of your vehicle with Rust-Oleum Undercoating. This ultra-durable material applies easily and dries to a hard, rubberized finish that deadens noise and resists water, salt, debris and more. Once it hardens, it can be painted a variety of colors to match the rest of your vehicle. It also works well on boat trailers. For best results and maximum durability, apply two coats.
Rust-Oleum Professional Grade Undercoating Quart, Black:
Paintable and quick drying
Packaging requirements for returns
Due to federal restrictions, this item must be returned in its original package, or with secure ORM-D packaging obtained from the post office. We advise keeping the original packaging for at least 90 days. See our returns policy for more information.
Manufacturer Part Number
Assembled Product Dimensions (L x W x H)
4.25 x 4.25 x 4.88 Inches
Average rating:5out of5stars, based on5reviews5ratings
1-5 of 5 reviews
Average rating:5out of5stars, based on0reviews
Product works great, goes on best with a brush in warm temps.
Can this be applied over existing dirt and moisture under a vehicle and will it harm factory coatings?
by JustinDecember 15, 2015
Last answer: December 18, 2015
1. No, Justin. The surface must be free of dirt, dust, oil, grease and any contamination that may interfere with adhesion before applying Rust-Oleum Automotive Professional Grade Undercoating. For proper adhesion, sand the entire surface to be coated with 120-220 grit sandpaper and remove all sanding dust with a clean cloth. Protect and mask off all surrounding areas to prevent paint splatter. Professional Grade Undercoating will not harm the existing factory protection, it will enhance it. Please be aware that applying this product may negate the warranty where applied.
1. Rust-Oleum Automotive Professional Undercoating does provide corrosion protection from water, salt, and chemicals. We recommend cleaning the surface as soon as possible after the coating comes into contact with gas or diesel fuel.
We're committed to providing low prices every day, on everything. So if you find a current lower price from an online retailer on an identical, in-stock product, tell us and we'll match it. See more details atOnline Price Match.
I have feedback on
Due to the high volume of feedback, we are unable to respond to individual comments. If you need immediate assistance, please contact Customer Care.
How was your experience with this page?
Sorry, but we can't respond to individual comments. If you need immediate assistance, please contact Customer Care.
Your feedback helps us make Walmart shopping better for millions of customers.
Generated at Mon, 14 Oct 2019 00:16:31 GMT exp-ck: 1; xpa: 3wJD7|5kL9u|6AW5f|Acxdr|BPtCX|HFKNj|KSREa|M_2FJ|YOgeu|ZYoEl|bJ8Qe|fj-AU|g84Nu|iPdrb|lQNpo|lYUGY|lkSaP|mMxa3|r8TBn|rgxjp|t5GZA|uVAlY|wU3zF;