Three ways to put paint on a chip, and the internet argues about which is best. It's the wrong argument. They fix different sizes of damage, and the honest answer is: match the applicator to the job.
Paint pens
Good for: very fine scratches, thin lines, edges.
A pen puts down a narrow, controlled stripe of paint. On a hairline scratch that's exactly right.
Where they let people down: stone chips. A pen tends to over-deliver paint into a small crater, and you end up with a raised blob that catches the light worse than the chip did. Pens also tend to be one shade covering many cars, which is the deeper problem — color, not applicator.
Brush bottles (the 2oz)
Good for: stone chips, small scratches, anything you'd fix with a toothpick.
This is the workhorse and what we'd hand most people. The brush lives in the cap, and crucially you control how much paint leaves it — dab a little, wait, dab again. Building a chip in three thin layers is the single biggest difference between a repair that disappears and one you notice every time you walk past.
Ours is a 1K gloss formula, which matters more than it sounds: the gloss is in the paint. It dries shiny straight from the bottle with no clearcoat step, and you can polish the repair directly. Most DIY touch-up failures happen at the clearcoat stage — this removes the stage.
Aerosols
Good for: bumper corners, mirror caps, trim, long scratches, whole panels.
Once damage is longer than a few inches, no brush will hide it. A brush line down a door reads as a line from twenty feet. Spraying lays an even film and lets you blend into the surrounding paint.
The trade: masking. Spraying takes prep — tape, paper, a dust-free spot, and somewhere the overspray can't reach. Budget an afternoon rather than ten minutes.
Quick decision
| Damage | Use |
|---|---|
| Hairline scratch, nail doesn't catch | Neither — polish it |
| Fine scratch, nail just catches | Pen or brush bottle |
| Stone chips | Brush bottle |
| Scratch longer than a few inches | Aerosol |
| Bumper corner, mirror cap, trim | Aerosol |
| Whole panel or respray | Ready-to-spray quart or gallon |
The thing that actually decides the result
Not the applicator — the color. A perfect technique in an approximate shade looks worse than a rough repair in the exact one, because the eye catches color mismatch instantly and texture barely at all. Whatever you apply it with, start from your factory paint code.
More on technique: how to apply touch-up paint without making it worse.