Paint Thickness Checker Pen

The Pocket-Sized Pen That Exposes a Car's Hidden Accident History

Buying a used car? A fresh coat of paint can hide a lot — a bumped fender, a flooded panel, a full repaint job to cover accident damage. Most buyers have no way to know until it's too late. This Magnetic Paint Thickness Checker Pen tells you in seconds. No app, no electrician's tools, no guessing — just place it on the panel and read the colour.

Why It Works Better Than "Just Looking"

• ✓ No batteries, ever — runs on pure magnetism, so it's always ready in your glove box, rain or shine
• ✓ Works on wet, dirty, or dusty surfaces — check a car in a muddy showroom yard or after a wash, doesn't matter
• ✓ Instant colour-coded reading — no charts to memorise, no numbers to interpret on the spot
• ✓ Pen-sized and pocket-friendly — slips into a glove box, jacket pocket, or tool kit
• ✓ Built for repeat use — durable enough for professional appraisers checking dozens of cars a week
• ✓ One tool, every colour of car — works the same on a white hatchback or a black sedan

How It Works — Read Any Panel in Seconds

Place the pen tip against the car's paint. Let the magnet grip the surface, then slowly pull straight outward. Note the exact point where it releases — that colour is your answer:

• Blue — Very thin layer. Likely original, untouched paint.
• Green — Normal factory thickness. Original paint.
• Yellow — Slightly thicker. Panel has likely been repainted after a minor repair.
• Red — Noticeably thick. Panel was repaired and repainted.
• Black — Very thick, with filler underneath. Sign of major bodywork.

Check the bonnet, doors, boot, and fenders separately — a mismatch between panels is often the biggest giveaway of hidden accident repair.

Before You Buy: Check Compatibility

This gauge uses a magnetic mechanism, so it gives accurate readings on steel body panels — the vast majority of a car's body. It will not give a reliable reading on aluminium, fibreglass, or carbon-fibre panels (some bonnets, boots, and body kits on certain models). For a full check, test multiple steel panels — doors and rear quarters are usually the most reliable spots.

FAQs

• Does it work on every car colour? Yes — the magnet reads paint thickness, not colour, so it works on any painted steel panel.
• Do I need to charge it or carry batteries? No. It's fully magnetic — no power source required.
• Can I use it in the rain or on a dirty car? Yes, it works on wet or dusty surfaces without affecting the reading.

Stop Guessing. Start Checking.

A car that looks perfect can still hide a repaint. Order your Paint Thickness Checker Pen today