Touch-up paint is the right fix for chips and short scratches, and the cheap way to stop rust. A body shop is the right fix when you want a long or deep scratch to disappear. The difference in price is big: about $10 to $70 for touch-up, against roughly $300 to $1,500 at a shop depending on depth.
Start with the fingernail test. It tells you which group you're in.
The fingernail test
Drag a fingernail across the scratch. If it glides over, the damage is likely only in the clear coat (Globe and Mail). Polish or a scratch-removal kit can usually take that out. The 3M kit the Globe tested cost $23.
If your nail catches, the scratch goes deeper than the clear coat. A polishing kit won't fix it. 3M's Scratch and Scuff Removal Kit, for example, says in its directions that it's for clear-coat scratches "and not deeper."
Then look in the groove. If you can see bare metal, the scratch is through every layer of paint, and the clock is running on rust.
How thick car paint actually is
Factory paint is thinner than a sticky note. Detailed Image says average factory paint measures about 4 to 5 mils, or roughly 100 to 130 microns, depending on make and model. Detailer Mike Phillips puts a Post-it Note at about 80 microns.
That paint is four layers on top of the steel. A coatings maker, Elementis, gives these typical OEM thicknesses:
Layer | Typical thickness | If the scratch stops here | Typical shop price |
|---|---|---|---|
Clear coat | About 40 µm | Polish or scratch kit | $150 to $300 |
Base coat (color) | 15 to 25 µm | Touch-up or smart repair | $300 to $1,000 |
Primer surfacer | 35 to 45 µm | Touch-up to seal, shop to hide | $500 to $800 |
E-coat | 15 to 20 µm | Seal now, then shop repair | Not priced separately |
Steel | n/a | Seal now, then shop repair | $800 to $1,500 or more |
The clear coat is the thickest single layer, but it's still only about 40 to 50 microns. Elementis gives about 40, and Mike Phillips puts factory clear at about 2 mils, or 50 microns. There's very little to sand or polish away before you're through it.
That's the trap with deep scratches. Chasing one with compound thins the clear around it, and the scratch is still there.
What touch-up paint can fix
Touch-up paint fills the groove with matching color. It works best on stone chips, short scratches and anything down to metal that needs sealing quickly. It rarely makes a long scratch invisible.
There are two main types. A factory pen or bottle from your dealer costs little; a genuine Toyota touch-up pen was $16.82 at Walmart. AutoBodyShopNear puts generic pens at $10 to $30.
Dr. ColorChip kits cost more and work differently. You dab paint into the damage, wait a few minutes, then wipe the excess off with a blending solution (Grassroots Motorsports). The basic kit is $49.95 on Dr. ColorChip's site. It's sized for about 12 chips or a small scratch. The Squirt 'n Squeegee kit for road rash is $62.95, the Plus is $67.95, and a two-car kit is $119.95.
Grassroots Motorsports tested one on a faded Honda Element. Tom Suddard got chips nearly invisible from about a foot away with practice, but said "It's not completely undetectable." A reader added that it won't match three-stage paint.
Smart repair: the middle option
Smart repair stands for Small to Medium Area Repair Technology. A technician repairs just the damaged spot, often at your house, rather than repainting the panel. Start Rescue says it suits scratches through the clear coat but not into the metal.
US shops price the same idea as professional touch-up or spot repair. AutoBodyShopNear puts it at $150 to $400. In the UK, Start Rescue quotes £150 to £300 for deeper scratches.
What a body shop charges
A shop sands the area, rebuilds the layers and blends new paint into the panel. Price tracks depth, because each layer adds steps.
Damage | Body shop price | Source |
|---|---|---|
Clear coat only | $150 to $300 | Byers Collision, AutoBodyShopNear |
Into the base coat | $300 to $600 | AutoBodyShopNear |
Into the base coat | $400 to $1,000 | Byers Collision |
Into primer | $500 to $800 | AutoBodyShopNear |
Bare metal or plastic | $800 to $1,500 | Byers Collision |
Bare metal, full panel prep | $800 to $2,500 or more | AutoBodyShopNear |
Full panel respray | $400 to $1,200 | AutoBodyShopNear |
Keying is where it adds up. AutoBodyShopNear lists a keyed panel respray at $500 to $1,200 per panel, so a scratch along both doors and a fender can pass $3,000.
Chase says a dealer can charge up to twice as much as a body shop for the same panel work. Get three estimates. Our guide on what it costs to fix a scratch covers bumpers, insurance and UK prices in more detail.
Which to choose
- Nail doesn't catch: polish it. A $15 to $60 kit or a $150 to $300 detailer visit.
- Nail catches, short scratch or chips: touch-up paint. Use the factory color code and build it up in thin layers.
- Nail catches, long scratch on a door or hood you look at every day: smart repair first, body shop if it's too big.
- Primer or metal showing: touch it up this week to seal it, even if a shop will fix it properly later. Chase says scratches to bare metal need attention to prevent rust.
- Keyed across several panels: get shop quotes and consider a claim. Our guide on why someone would key a car covers what to do next.
Common questions
Can touch-up paint fix a deep scratch?
It can fill and seal one, which stops rust. It usually won't make a long, deep scratch invisible. A short scratch done in thin layers can look good from a few feet.
Where do I find my paint code?
Usually on a sticker in the driver's door jamb. A dealer parts counter can also match exact paint by VIN, as Chase notes.
Is Dr. ColorChip better than a dealer touch-up pen?
For clusters of stone chips, its wipe-off blending method is easier to get right. For a single narrow scratch, a $17 factory pen does the job. One Grassroots Motorsports reader said Dr. ColorChip won't match three-stage paint.
How long can I leave a scratch down to metal?
Not long. Chase says a scratch down to metal needs immediate attention to prevent oxidation and rust. Seal it with touch-up paint now and decide on a proper repair later.
Sources
- The Globe and Mail: This kit is up to scratch
- Detailed Image: Paint measurements and what they mean
- Mike Phillips: Clearcoats are thin
- Elementis: Talc in automotive coatings
- Dr. ColorChip: Car paint chip repair kits
- Grassroots Motorsports: Dr. ColorChip review
- Walmart: Genuine Toyota touch-up paint pen
- AutoBodyShopNear: Car scratch repair cost
- Byers Collision: Is it expensive to fix scratches on a car?
- Chase: How much to fix a scratch on a car
- Start Rescue: How much does a car scratch repair cost?
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