{"product_id":"magnetic-paint-thickness-tester-pen-color-coded-micron-scale","title":"Magnetic Paint Thickness Tester Pen – Color-Coded Micron Scale","description":"\n\u003ch2\u003eInstantly Detect Car Paint Thickness — No Batteries Required\u003c\/h2\u003e\n\u003cp\u003eKnow exactly what you're buying before you sign on the dotted line. This \u003cstrong\u003eMagnetic Coating Thickness Detection Pen\u003c\/strong\u003e is the ultimate pre-purchase inspection tool for used car buyers, auto detailers, and dealership professionals. Simply touch the magnetic tip to any steel or galvanized steel surface and the colour-coded micron scale gives you an instant, accurate reading — no guesswork, no electronics, no charging.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eWhat the Colour Scale Tells You\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e🔵 Blue (0–100 microns):\u003c\/strong\u003e Very thin coat — likely a factory varnish that has been repeatedly polished or applied without a primer.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e🟢 Green (100–200 microns):\u003c\/strong\u003e Normal original factory varnish. Note: on newer models, readings near 180 microns may indicate a thin secondary coat.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e🟡 Yellow (200–300 microns):\u003c\/strong\u003e Post-repair repaint (\"second varnish\") — the panel has likely been refinished.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e🔴 Red (300–520 microns):\u003c\/strong\u003e Panel has undergone sheet metal repair plus a second coat of varnish — significant body work detected.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e⚫ Black (520+ microns):\u003c\/strong\u003e Heavy filler\/putty present under the varnish — approximately 0.5 mm of body filler.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eNo battery needed\u003c\/strong\u003e — purely mechanical, always ready\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eMagnetic tip\u003c\/strong\u003e — clings to curved panels and hard-to-reach areas\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003e±20 micron accuracy\u003c\/strong\u003e — reliable and consistent readings\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eWater resistant\u003c\/strong\u003e — built for workshop and outdoor use\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eABS construction\u003c\/strong\u003e — lightweight, durable, and pocket-sized (13.7 × 1.26 cm)\u003c\/li\u003e\n  \u003cli\u003e✅ Works on \u003cstrong\u003esheet steel and galvanized steel\u003c\/strong\u003e vehicles\u003c\/li\u003e\n  \u003cli\u003e✅ Instantly checks for hidden bodywork, accident repairs, and filler\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWho Needs This?\u003c\/h3\u003e\n\u003cp\u003eWhether you're a \u003cstrong\u003eused car buyer\u003c\/strong\u003e wanting peace of mind, a \u003cstrong\u003eprofessional detailer\u003c\/strong\u003e assessing panel condition, or a \u003cstrong\u003ecar dealer\u003c\/strong\u003e verifying stock, this pen gives you the facts in seconds. It's small enough to slip in your pocket and strong enough to reveal a vehicle's true history.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e ABS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 13.7 × 1.26 cm (approx. 5.39 × 0.5 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement Range:\u003c\/strong\u003e 0–520+ microns\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e ±20 microns\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e None required\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Surfaces:\u003c\/strong\u003e Steel \u0026amp; galvanized steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Paint Thickness Tester Pen\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10000-psi-grease-gun-coupler-npt-1-8-quick-release-nozzle\"\u003e10,000 PSI Grease Gun Coupler NPT 1\/8 Quick Release Nozzle\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/0-60mpa-pressure-gauge-s60h-diesel-injector-nozzle-tester-8000psi\"\u003e0–60MPa Pressure Gauge for S60H Diesel Injector Nozzle Tester\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more information on vehicle safety and consumer protection when buying used cars, visit the FTC's Used Car Buying Guide.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Does the paint thickness tester pen work on aluminium or fibreglass panels?\u003c\/h4\u003e\n\u003cp\u003eA: No — this magnetic paint thickness tester is designed specifically for \u003cstrong\u003esteel and galvanized steel\u003c\/strong\u003e surfaces. It relies on magnetic attraction to measure coating depth, so it will not give accurate readings on aluminium, fibreglass, plastic, or carbon fibre panels.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How accurate is the color-coded micron scale on this pen?\u003c\/h4\u003e\n\u003cp\u003eA: The pen delivers readings with an accuracy of \u003cstrong\u003e±20 microns\u003c\/strong\u003e, making it reliable enough to detect repainted panels, body filler, and second coats of varnish that are invisible to the naked eye.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Do I need to calibrate or charge the paint thickness detection pen before use?\u003c\/h4\u003e\n\u003cp\u003eA: No calibration or charging is required. This is a \u003cstrong\u003ebattery-free, purely mechanical tool\u003c\/strong\u003e. Simply ensure the surface you're testing is clean and free of dust, then touch the magnetic tip to the panel for an instant reading.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use this tool to check a car before buying it at a dealership or private sale?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. This pen is ideal for \u003cstrong\u003epre-purchase vehicle inspections\u003c\/strong\u003e. It quickly reveals whether panels have been repainted, repaired with body filler, or are in original factory condition — giving you important negotiating information before you buy.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Does the paint thickness tester pen work on aluminium or fibreglass panels?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — this magnetic paint thickness tester is designed specifically for steel and galvanized steel surfaces. 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