Unlike the POR-15 alternative above, this formula will require heating up in order to “wake up” the rust inhibitor molecules and be easier to spray. It’s like death and taxes. Ziebart was always the best but is no longer in business; so the next best would be Eastwood interior frame coating; as you can apply it with a long tube and dispersing tip; included with the spray can ! No drips, no mess, and no fuss. If the coating comes out in a narrow stream, spray the coating up and down to get a proper coat. For maximum protection against rust and corrosion, Rust-Oleum recommends 2 thin coats for every application. This undercoating covers the vehicle really well and dresses up the metal. Unlike other aerosol rust prevention spray alternatives, this formula is designed to provide a flat finish, which minimizes surface imperfections. The rubberized coat will remain soft when dry, and the surface can be prepped for the application of paint whenever applicable. A: A fresh undercoat should be applied once a year, and more so before the beginning of winter season, as your tires tend to flick up moisture, ice, rocks, and dirt at your vehicle's body. Most coats do not stick on greased surfaces, no matter how long you leave it to dry. No doubt, rust is the number one rival of a metal surface. Take a look at some of the best rust converters that bond with rust and form a polymer compound. In addition, like a rubberized spray, it will form a durable barrier against moisture, grime, and grit. Penray is a global manufacturer of chemical products for marine equipment and the automotive industry. The rubberized texture of this undercoating spray will also seal the undercarriage so your car will ride smoother and quieter, even on dreaded cobblestone roads and surfaces with loose gravel. Within some of our articles, ProCarReviews may direct you to retailers, which may provide us with a small commission on any sales. Also, the coverage isn't particularly thick, and it may splatter a bit when you spray it. The coating also seals up small cracks and holes in an old undercarriage to even out the surface.
The only drawback is that you will need multiple cans to complete the job and this could be fairly expensive when compared to the alternatives. Be careful not to spray major components such as the brake caliper and pads as this may cause issues. View policies. The 3M Rubberized Undercoating spray is perfect for cars, trucks, SUVs, and recreational vehicles. Rubberized undercoating is safe to use on quarter panels and wheel wells and dries with a soft rubbery finish. The Rust-Oleum undercoat spray is worthless .I work in retail where we sell about a dozen cans of it a day and have heard bad things about it not lasting more than a few months .So I bought 6 cans myself and did the underneath of my truck and it all washed off in 5 weeks .It’s a waste of money even though it’s the cheapest option at less than $4.00 a can . Personally, using a mixture of both a paint and spray such as POR-15 and Waxoyl is the best route and as you can see below, we used the silver POR-15 on the worst rust areas to begin with. But this is not necessarily an issue is you’re going to use this on your undercarriage anyway unless you’re planning to paint the undercarriage. The formula is guaranteed not to drip, sag, or run. It is also easy to apply, is all-natural, and repels water, snow, and ice while retarding rust. The professional-blend formula is ideal for automotive, home, or shop use. It also provides a non-porous coating that wont chip, crack or peel. Its main advantage is that it seeps quickly into cracks and seams, and offers moderate protective properties against moisture. Choosing The Best Car Undercoating Spray – Top 7 That Will Protect Your Vehicle Undercarriage, The 7 Best Car Undercoating Sprays Reviewed, 1. However, this spray is suitable for cars, trailers, trucks, and RVs. The underbody of your car is where the majority of the rust will occur and you can have cars that look pristine bodywork wise but can have holes in the floor. If it’s a tall fan spray, we suggest that you spray it from side to side. Those that drive beater/average day cars will want to ensure rust doesn’t spread and that they can keep the car on the road for as long as possible and pass inspections. Rustproofing & Undercoating-Automotive. However, all is not lost. You can either depend on the services of a professional, or you can do it yourself. That’s right. 3M is a huge brand in a range of industries and this anti rust protective coating is ideal for the underbody.
It's solvent-free, won't dry out, and will penetrate to all metal bases.