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Exterior Care intermediate 10 min read

Getting Scratches Out of Your Paint Without Ruining It

Most car owners make this harder than it needs to be. Here's the straightforward approach that actually works—no fluff, no upselling.

Found a fresh scratch on your pride and joy? Don't panic. Whether it's a bush-bash pinstripe or a shopping centre mishap, here is exactly how to fix it like a pro.

MT
Mick Thompson Senior Detailing Editor
| Updated: 3 March 2026
What You'll Learn
Getting Scratches Out of Your Paint Without Ruining It

Aussie Conditions

Australian conditions are tougher than most—intense UV, red dust, coastal salt, and 40°C summers. European car care advice often doesn't cut it here.
Quick Summary

Look, we've all been there. You come back to the car at the shops or finish a weekend up the coast and find a nasty mark on the door. This guide is for anyone who wants to tackle those scratches themselves without spending a fortune at a panel shop. We're going to cover everything from the basic finger-nail test to using a dual-action polisher like a seasoned detailer.

01

The Honest Truth About Scratches

Right, let's get one thing straight before we even open the garage door. Not every scratch can be fixed with a bit of elbow grease and a bottle of polish. After 15 years in the trade, I've seen blokes try to 'buff out' marks that were basically through to the metal, and all they ended up doing was burning the surrounding paint. It’s heartbreaking. I remember a customer once brought in a black Commodore, VY SS, beautiful rig, and he’d tried to use a kitchen scourer to get some bird lime off the bonnet. I nearly cried. He’d turned a 10-minute fix into a $800 respray job. That’s why I’m writing this. I want you to know exactly what you’re looking at before you start rubbing. In Australia, our paint has a harder life than just about anywhere else. Between the relentless UV in QLD or WA, the salty air if you’re living anywhere near the coast, and that bloody red dust that gets into every crevice, our clear coats take a beating. When paint gets hot, and I’m talking 60-70 degrees Celsius on a dark bonnet in the sun, it actually softens. That makes it easier to scratch, but also trickier to polish if you don't know what you're doing. This guide isn't about some 'magic pen' you see on late-night TV (don't waste your money on those, they're rubbish). This is about the real-deal methods we use in the shop. We’re going to talk about depth, heat management, and why your choice of pad matters just as much as the polish itself. Let's get stuck in.
02

The Detailer's Kit Bag

What You'll Need

0/12
Dual Action (DA) Polisher — Don't go buying a cheap rotary from a hardware store unless you want to burn through your paint in 3 seconds. A DA like a Rupes or even a decent ShineMate is much safer for a DIYer.
Clay Bar or Clay Mitt — I reckon the mitts are better these days. If you drop a clay bar on the garage floor, it’s bin-material instantly. A mitt you can just rinse off.
Cutting Compound — Something like Koch Chemie H9 or Meguiar's M105. This is the 'heavy hitter' for deep marks.
Finishing Polish — Sonax Perfect Finish or Bowden's Own Paint Cleanse & Restore. This brings back the mirror shine after the heavy cutting.
Microfibre Cloths (At least 10) — Get the good ones, no edges. Use different colours for different stages so you don't cross-contaminate.
IPA (Isopropyl Alcohol) Wipe or Prep Spray — Essential to strip the oils so you can see if the scratch is actually gone or just hidden by polish oils.
Foam Pads (Cutting and Finishing) — I usually go for Lake Country or Scholl Concepts. You'll need a firm one for cutting and a soft one for finishing.
High-Quality Car Wash (pH Neutral) — None of that 'wash and wax' stuff yet. We want the paint naked and clean.
Masking Tape (Automotive Grade) — To cover your plastics and rubber trim. Polish turns black trim white and it's a nightmare to get off.
Inspection Light — A decent LED torch or even your phone light. You need to see the 'swirls' to know if you're winning.
Lubricant for Claying — Dedicated clay lube or just a very soapy bucket of water works in a pinch.
Touch-up Paint (Optional) — Only if the scratch is through to the primer. Match your VIN code exactly.
03

Preparation: Don't Skip This

Tap each step to mark complete
01

Deep Clean

Wash the car thoroughly using the two-bucket method. If there's even a single grain of red dust left on the panel, your polisher will turn it into a piece of sandpaper and ruin the whole door.

02

Decontamination

Use an iron remover if you've got one, then hit it with the clay bar. Run your hand over the paint (inside a sandwich bag is a pro trick), it should feel smooth as glass. If it's gritty, keep claying.

03

Dry it Properly

Use a big microfibre drying towel. Water spots are the enemy of polishing. Blow out the gaps around mirrors and trim with a leaf blower if you have one.

04

The Fingernail Test

Run your nail across the scratch. If your nail catches in it, it's likely too deep for polish alone and might need wet sanding or touch-up paint. If it doesn't catch, we're golden for a buff.

05

Tape Up

Tape off any plastic trim, rubber seals, or sharp body lines nearby. This is the bit everyone gets lazy with, but trust me, cleaning dried compound out of a rubber seal is a job I wouldn't wish on my worst enemy.

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Watch Out

Never, ever polish a car in direct sunlight or when the panels are hot to the touch. If it's a 35-degree arvo in Perth or Western Sydney, wait until the sun goes down or get it in the shade. Polish will dry instantly on a hot panel, and you'll end up scouring the paint instead of refining it.
04

The Step-by-Step Fix

Tap each step to mark complete
01

Prime your pad

Put 4-5 pea-sized drops of compound on your cutting pad. Don't go overboard; more isn't better here.

02

Dab it on

With the machine OFF, dab the pad across the 40x40cm area you're working on to spread the product.

03

Start Slow

Set your DA polisher to speed 1 or 2. Spread the polish quickly over the work area.

04

The Work Phase

Crank the speed up to 4 or 5. Move the machine in slow, overlapping horizontal passes, then vertical passes (a cross-hatch pattern).

05

Let the machine do the work

Don't lean on it like you're trying to push it through the floor. Just enough pressure to keep the pad flat.

06

Watch the Flash

Work the section until the polish looks translucent or 'oily'. This usually takes 3-4 passes.

07

Wipe and Inspect

Use a clean microfibre to wipe the residue. Look at it under your light.

08

The IPA Wipe

Spray your prep spray/IPA. This is crucial. It removes the fillers. If the scratch is still there, you need another set of passes with the compound.

09

Switch to Finishing

Once the scratch is gone, you'll notice the paint looks a bit hazy. That's 'marring' from the heavy compound. Swap to your soft finishing pad and finishing polish.

10

Refine the Shine

Use the same technique as above, but with the lighter polish. This is where the 'depth' and gloss come back.

11

Final Wipe down

Wipe it clean and check from multiple angles. It should look like a mirror.

12

Seal the deal

Now that you've removed the protection (and some clear coat), you MUST put a wax, sealant, or ceramic coating back on it.

The 'Less is More' Rule

I learned this the hard way on a black Commodore. I thought 'heavy scratch needs heavy pressure'. Wrong. I ended up with a 'pig's tail' marks all over the door. Always start with the least aggressive combo first. Try a polishing pad and light polish before you jump to the heavy cutting compound. You'd be surprised how often a light touch does the trick.
05

Advanced Trick: Wet Sanding

If you've got a scratch that catches your nail but isn't through to the primer, you might need to wet sand. This is scary for beginners, but it's often more effective than hours of buffing. Use 2000 or 3000 grit wet-and-dry sandpaper soaked in soapy water for 15 minutes. Lightly, and I mean LIGHTLY, sand the scratch in one direction. The paint will go completely dull. Don't panic. You then use the polishing steps above to bring the shine back. I'd only recommend this if you've practiced on a scrap panel from a wreckers first. Seriously, go to a wreckers, buy a $20 door, and go nuts on it before you touch your own car.
06

What to Buy (And what to avoid)

Honestly, I wouldn't bother with those 'All-in-One' (AIO) products if you're trying to fix a specific scratch. They're okay for a quick spruce-up, but they lack the 'cut' to actually remove defects. My go-to for Aussie conditions is the Bowden’s Own range if you want something local, their 'Fine Cut' and 'Paint Cleanse' are solid. If you want the absolute best, Gtechniq or Koch Chemie are what I use in my mobile business. Avoid 'cutting pastes' that come in a tin and feel like sand. They're old-school tech from the 70s and they're way too aggressive for modern clear coats. We're looking for 'diminishing abrasives' in a liquid form.
07

Keeping it Schmik

After you've spent the morning sweating over a scratch, the last thing you want is for it to come back or for the paint to fade. In Australia, the UV will eat your clear coat if it's left 'naked'. Once you’ve finished polishing, apply a high-quality sealant. If you're near the coast, I reckon a ceramic-based sealant is the way to go because it handles the salt spray better than a traditional Carnauba wax. Wash your microfibres with a dedicated microfibre wash (no fabric softener!) so they stay soft for the next time. If you use a crusty old towel next wash, you'll just put all those scratches straight back in. (Your partner might think you're mad for having a separate laundry basket for car towels, but they'll thank you when the car stays looking new).
08

Common Questions from the Shop

Can I do this by hand?
You can, but you'll have arms like Popeye by the end of it. A machine provides a level of consistency and speed that a human hand just can't match. If you must do it by hand, use a firm foam applicator, not a rag.
Will this fix a scratch from a shopping trolley?
Usually, yes. Trolley marks are often 'transfer', meaning the plastic or metal from the trolley rubbed off onto your paint. A good polish will take that right off.
What if the scratch is white?
If the scratch looks white or grey and your car isn't that colour, you've likely hit the primer. Polishing won't fix this; you'll need a touch-up pen and some patience.
How many times can I polish a scratch?
Modern clear coats are about as thick as a Post-it note. You can probably do a heavy correction 3-4 times in the life of the car before you run out of clear coat. Don't overdo it.
Does toothpaste actually work?
Short answer: No. It's an old wives' tale. It has some mild abrasives, but it's messy and nowhere near as effective as a $15 bottle of proper car polish.
Is red dust worse for scratches?
Absolutely. Red dust is basically iron ore. If you rub it, it's like using a file. Always pressure wash the car before touching it if you've been out west.

Watch Out

Be extremely careful around the edges of panels (like the top of a door or the ridges on a bonnet). The paint is thinnest on these sharp corners. It is very easy to 'buff through' to the metal on an edge. Keep the machine moving and stay about a centimetre away from sharp edges if you're a beginner.

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