Clear-coat car scratch remover pen — works like a touch up paint pen for any colour, no paint code needed. Trolley marks, key scuffs, light scratches. £9.99 free UK delivery from Bob's garage.
What a scratch pen can and cannot fix
A scratch pen works on clear-coat scratches — the ones that catch a fingernail lightly or not at all, and that vanish when you wet the panel with water. Those are polished or filled and genuinely disappear. If the scratch stays visible when wet, it has gone through the colour and a pen will not fix it.
The fingernail test decides it. Run a nail across at right angles: if it drops into the groove, you are looking at a paint or primer scratch, and that needs touch-up paint or a bodyshop, not a pen.
Using one properly
Wash and dry the panel first — rubbing grit into paint makes a worse mark than the one you started with. Work in the shade on a cool panel, apply lightly along the scratch rather than across it, and build up in thin passes rather than one heavy smear.
Give it time to harden before washing, and finish with a wax or sealant over the repair. On a pearl or tri-coat finish, expect a colour match that is close rather than invisible.
When to stop and get it painted
If you can see grey primer or bare metal, get it sealed quickly. Bare steel rusts fast on a Scottish winter road, and a two-inch scratch left over one winter becomes a bubbling repair that costs real money.
Deep scratches on a lease or a car you plan to sell are usually worth a smart repair. A professional touch-in on a door edge costs far less than the deduction at handover.
Frequently asked questions
Do scratch pens actually work?
On clear-coat scratches, yes. If the scratch is still visible when the panel is wet, it has gone through the paint and a pen will not fix it.
How do I tell how deep a scratch is?
Run a fingernail across it. If the nail catches in the groove, it is through the clear coat and needs paint.
Will it match my colour exactly?
On solid colours usually very close. On pearl and tri-coat finishes expect close rather than invisible.
What if I can see bare metal?
Seal it quickly — exposed steel rusts fast, especially on salted winter roads.