Best Car Primers of 2026

"I've used this on my Mazda badges and for prepping craft projects, and I’m seriously impressed. It lays down smoothly, goes on crystal clear, and the adhesion is fantastic—even under a thick clear coat. The only downside is the strong smell, but with good ventilation and a proper mask, it's easily managed. I've never been disappointed with DupliColor—it's a staple for any DIY car enthusiast!"

"I used the Dupli-Color ECP199 before painting my car’s plastic trim and metal parts, and the difference in paint adhesion and smoothness was immediately noticeable. The aerosol can is easy to use, and the clear formula means no color change. After several weeks, there’s zero peeling or chipping. I highly recommend this for anyone looking to improve the quality and durability of their car paintwork."

"For my DIY automotive project, I tried Dupli-Color ECP199 and was thrilled with the outcome. It made the paint stick perfectly, resulting in a smooth, professional-looking finish. Application was mess-free and super convenient. This is a must-have for anyone wanting flawless results on their automotive paint jobs."

"I used this on my older pickup that had started to show some rust, especially after years of Michigan winters. The coverage was impressive, hiding blemishes and leaving a neat finish. I was able to apply it at different angles with no problem, and after using ten cans, I immediately ordered more because of how well it worked. My only regret is not using it sooner!"

"When I needed a rust preventative for my Jeep Cherokee, I turned to this product. It was simple to use and provided a hard, protective coating at a much lower cost than professional undercoating. If you're looking for something tough but still easy to touch up, this is a great midpoint between Plasti-Dip and Rhino Liner. Just practice your technique and allow several days for it to fully harden."

"I actually used this as a grip coating for my hand tools instead of undercoating. It added great texture and improved grip without adding much bulk, even on smooth plastic handles. The adhesion surprised me, and the handles have held up to a lot of use. Just be careful about overspray, as it can get a bit messy."

"I found this primer/etcher to be very successful in prepping my material for spray painting. It applies evenly and has left me quite pleased so far."

"I used this primer to prepare my Gibson-style Explorer guitar and was impressed. After sealing with epoxy, I put down two thick coats of this primer. It dried fast and sanded effortlessly—I'll definitely reach for it again on future projects."

"The coverage of this paint is solid, but I was surprised that the color turned out nearly black instead of the expected gray. Also, I discovered too late that it doesn’t work well with epoxy primers, so I had to add another primer over it. Make sure to check the technical sheets before starting your project."

"I used this to secure the edges of a helm pad on my boat and found the application simple and the bond incredibly strong. Even after months in the sun, no lifting or peeling occurred. While it is a bit pricey, you really only need one application, and I'm convinced removal would be a challenge due to its strength."

"In my vinyl wrap business, this primer is a game-changer for tricky spots. It's straightforward to use and the value is excellent, especially for hard-to-stick areas. The size is just right for my needs."

"I tested this on my arcade cabinet project, applying it to some vinyl wrap edges. The difference was night and day—vinyl with primer stuck way better and was much tougher to remove. I’d give it five stars if it weren’t for the higher cost."

"I used this to repair my convertible window, and it was simple to apply, dried fast, and created a solid bond. The black color wasn't an issue for me, but it's something to note if you have a light-colored top. I used an old makeup brush, and it worked great. The product did exactly what I needed for a professional-quality fix."

"After watching a few YouTube videos, I decided to use this primer for my first DIY convertible top repair. I was able to reattach the window securely and saved a lot compared to a body shop. Highly recommended for anyone looking to do the job themselves."

"I paired this primer with the 3M window weld adhesive to fix the rear window on my wife's Crossfire Roadster. About three-quarters of the window needed reattaching, and this combo worked flawlessly. The process took some planning and time, but the results matched what a professional would deliver at a fraction of the cost."

"I found this primer to be cheaper and just as effective as the name brand, and unlike 3M, it arrived unexpired. My window has stayed secure for months and it dried fast, exactly as promised."

"I used this on my 2003 Camry after prepping the frame and was impressed—no leaks and the application was easy. It paired perfectly with 3M adhesive for a solid, long-lasting bond."

"For my convertible's glass rear window, this was the perfect one-job solution. The primer worked great, but like most, it doesn't last long once opened."

"I've never left a review before, but I was blown away by how well this product worked. My CRV's shudder vanished after using it, and I had spent years thinking I'd need a costly torque converter replacement. I have no idea how long it’ll last, but so far, it’s working perfectly. Really impressive!"

"After trying everything to fix the shudder and vibration in my truck, I was about to give up. I saw a recommendation for this product online and gave it a shot—the shudder disappeared immediately. The truck now shifts smoother than ever, and I’ll definitely use this again during my next fluid change."

"My 2007 FJ Cruiser had a serious torque converter shudder, and the dealership quoted me $6,000 for a new transmission. A trusted mechanic suggested I try this with a transmission service. Within about 30 miles, the shudder was completely gone."

"I've worked with a lot of primers, but this one really stands out for its thick, high-build formula. It went on easily and dries fast, letting me sand it just a couple of hours after spraying. The working time is great, and the hardener thins it out perfectly for spraying. This is now the only primer I'll use going forward."

"I appreciate how this primer is easy to pour and spray. It gives a solid build, covers well over etching primers, and hides sanding scratches in just two coats. As a professional painter, I think it's a solid and reliable choice for the price, and it has never failed me across many projects."

"This stuff builds beautifully and sands like butter. After using it, I've decided it's my go-to primer from now on."

"I decided to try this for the first time and so far, it’s working just as needed for a solid bond. No issues so far, and I’m hopeful it’ll keep performing."

"This is a must-have when I’m fletching AAE vanes. I’ve noticed the fletchings stay locked on securely. Definitely makes the process easier."

"I really like this product. I recommend getting two because you’ll use them up. Even though the liquid sometimes runs off the vanes, I still love how well it works."

"I used this primer for my BMW i3 windshield replacement and was impressed by how well it worked. One small bottle covered both the frame and glass easily, and it dried quickly, making installation smooth. The kit came with everything I needed—highly recommended!"

"I chose this instead of the pricier 3M primer and it has worked perfectly with 3M urethane adhesive on my 2007 Mustang convertible. It’s been holding strong for a month, but I’d advise wearing gloves because it can be messy. If you get it on extra areas, a razor cleans it up nicely."

"I was a first-timer using a product like this, but after my Toyota Highlander’s rear window was broken, I used it for the replacement. Everything worked as expected and the product arrived in great condition. It made me look like a pro, even though it was my first attempt!"