Do custom magnets work on cars?

Yes. Custom magnets stick to any flat or gently curved steel panel on a car, like doors, tailgates, and body panels. Put them on a clean, dry surface and they hold at highway speeds, then peel off with no residue. They will not stick to aluminum or fiberglass, which some newer cars use, so test your panel with a fridge magnet first.

How to apply a car magnet so it holds

Wash and dry the panel first so grit does not sit under the magnet, then press from the center out to push the air out. After that, a custom magnet stays put through daily driving and highway speeds, holds through cold winters and hot summers, and bends to fit a curved door without cracking.

Lift and reposition the magnet now and then instead of leaving it for months. That lets moisture escape and keeps the paint underneath in good shape.

Custom printed car magnet displayed on a vehicle door

Which vehicle panels work, and which do not

Steel doors, tailgates, and body panels are magnetic and work well. Aluminum and fiberglass are not, and some newer cars use them, so test your spot with a fridge magnet first. If a household magnet sticks, your custom magnet will too. More in what surfaces magnets stick to, and how they handle weather.

Related questions

More about putting custom magnets on a car.

On most cars, yes. Steel doors, tailgates, and body panels are magnetic, so a custom magnet holds well. Some newer vehicles use aluminum or fiberglass panels, which are not magnetic, so test the spot with a fridge magnet first.
Not when used correctly. Apply to clean, dry paint, and avoid fresh paint, loose paint, rust, deep texture, or dirty panels. Lift the magnet now and then to clean and dry underneath, and remove it before an automatic car wash. Keeping the panel and magnet clean is what protects the finish.
Custom magnets stick to steel and iron, like fridges, cabinets, and most car panels, but not to wood, glass, plastic, or aluminum. See what surfaces magnets stick to.
Yes. The print is made to handle rain, sun, and temperature changes in normal outdoor use, and outdoor magnets usually last around two to three years. Learn how outdoor magnets hold up.
Custom magnets are 1mm thick, about twice as thick as most budget magnets, so they lie flat and feel solid while still bending for curves. See why thickness affects hold.