Automotive Sandable Primer Spray, Flat Black

I’m happy with this Rust-Oleum automotive sandable primer. It was easy to apply and provided good coverage. It sands smoothly and helped create an even surface before applying paint. It’s a useful product for small automotive repair and DIY projects. Overall, good quality for the price.

I recently switched from a grey primer to Rust-Oleum’s black sandable primer for all my 3D-printed helmets and props, and I’m genuinely impressed. First off, the price is great—this 12-ounce can won’t break the bank, even when you’re covering full-size pieces. I sprayed two light coats on a full-scale helmet and still had plenty left over for a half-scale mask, which felt like a real bargain compared to other brands I’ve tried. What really sold me was the spray consistency. The aerosol tip delivers a smooth, even mist every time—no sputtering, no drips, no frustrating runs to sand out later. Even on tricky curves and recessed details, the primer settles perfectly, filling in light layer lines without obscuring fine sculpting. It’s forgiving enough that you don’t need perfect technique to get a great result. But the best part? The deep matte black finish makes imperfections practically leap out at you once you start sanding. Any high spots, pinholes, or rough patches are instantly obvious against the dark background—something I missed for years when using lighter greys. That little bonus has saved me hours of worrying over unseen flaws and made my final paint jobs much smoother. If you’re serious about prop-making or automotive work on plastic—and especially if you’re on a budget—give this black primer a shot. It sands down silky smooth, bonds like a champ, and really highlights spots that need a little extra love. I’m sold: it’s affordable, effective, and has earned a permanent spot in my workshop. Five stars from this avid maker!

Great primer for my silver painted car. Doesn’t affect paint tint. Reliable spray nozzle, clears easily completely. Eady to sand as goes on with good coverage.

Thecspray performance was amazing! EXACT color I was looking for! I'm soo extremely happy!

You get what you get these days as I had to buy two to complete the job I had to do..sure did run out quick though!! Drying time is needed or warm your space up for a flash dry!!

I like this primer because it dries quickly and you can add layers and you can sand it quickly also.

Why didn't I think of this sooner? Rust-Oleum Automotive Sandable Primer has become my go-to for shooting steel targets. The gray color is easy to see at the range, making it simple to check the target between uses, and it adheres well to the surface. At under $5 a can, it's an excellent value for something I use regularly. It gets the job done without spending a fortune, and I really can't ask for much more. Excellent product at a great price. I'll definitely be buying more!

It’s really important to use a primer on metal to get the tooth down into the metal and the acid edge of this primer removes any type of oxidation coating between sanding the metal cleaning the metal and getting the metal painted so you get a good bond. this worked well on the finish ended up being very nice

Good quality and fast delivery

Excelente producto!

Works awesome on 3d prints. Covers lines and allows a smooth finish. Make sure you stock up on elbow grease for the sanding

Really good quality paint. This one in particular adheres very well and does what it says. Really happy with my purchase and considering buying more.

Not sticking to 3D printed parts in PLA.