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Interior Cleaning intermediate 7 min read

Bringing Your Chrome and Trim Back to Life (Mar 2026)

Your car's interior cops more abuse than you realise—UV damage, spills, body oils, and the occasional fast food disaster. Here's how to fight back.

Dull plastic and pitted chrome can make even a clean car look like a bit of a dunger. Here is how I restore sun-damaged trim and oxidised metal using the same tricks I use in my detailing business.

D"M
Dave "Davo" Mitchell Off-Road & 4WD Specialist
| Updated: 7 March 2026
Bringing Your Chrome and Trim Back to Life (Mar 2026)

Aussie Conditions

Australian UV is 15% stronger than Europe. Your dash and leather need proper UV protection, not just cleaning, especially if you park outside.
Quick Summary

Look, we all know the Aussie sun is absolutely brutal on car plastics and chrome. Whether it's the salt air from coastal living or that fine red dust that gets into every crevice, your trim takes a beating. This guide is for anyone who wants to ditch the 'greyed-out' look and get that factory fresh finish back. I'll walk you through the proper way to clean, polish, and protect these bits so you aren't doing it all over again in a month's time.

01

The Reality of Aussie Trim Wear

Right, so here is the thing. Most people spend hours on their paint but completely ignore the rubber, plastic, and chrome bits. Then they wonder why the car still looks 'old'. I've been doing this for 15 years now, and I reckon the trim is what actually makes or breaks a detail. If you live near the coast, that salt spray is eating your chrome for breakfast. If you're out west, the UV is literally cooking the oils out of your plastic bumpers. I once had a customer bring in a top-of-the-line LandCruiser that looked about ten years older than it was just because the window seals had turned that chalky grey colour. Honestly, don't bother waxing your paint if your trim looks like a blackboard. It's a waste of time. Let's get stuck into how to actually fix it properly, rather than just slapping some greasy silicone over the top and hoping for the best (spoiler: that never works).
02

The Gear You'll Actually Need

What You'll Need

0/8
A good All-Purpose Cleaner (APC) — I usually go for Bowden's Own Agent Orange or Meguiar's APC diluted 10:1.
Soft-bristled detailing brushes — Get a pack of various sizes. Don't use your missus's old toothbrush unless you want a divorce.
Metal Polish — Autoglym Metal Polish is my go-to, or Purple Metal Polish if it's really far gone.
Trim Restorer / Solution — Solution Finish is the only one I trust for permanent results. Avoid the cheap 'wet look' sprays.
Microfibre applicators and cloths — Get at least 5-6 clean ones. You'll go through them fast.
Fine Grade Steel Wool (0000 grade) — MUST be 0000 grade. Anything coarser will scratch your chrome to buggery.
Isopropyl Alcohol (IPA) — Great for a final wipe down to ensure the surface is bone dry and oil-free.
Masking Tape — Low tack blue tape. This saves you from getting black trim restorer on your nice paint.
03

Preparation is Everything

Tap each step to mark complete
01

The Deep Clean

Give the whole car a proper wash first. Use your APC and a brush to get into the gaps around the trim. You'd be amazed how much red dust hides in window rubbers. If you don't get that out now, it'll ruin your applicator later.

02

Dry it Bone Dry

Water is the enemy here. Use a blower or some compressed air to get water out from behind the trim pieces. If a single drop of water hits your trim restorer while you're applying it, it'll streak and look terrible.

03

Tape it Up

I learned this the hard way on a black Commodore. I thought I had a steady hand, but I got metal polish on the plastic trim and it left white stains that took forever to remove. Just tape the edges. It takes five minutes and saves an hour of crying later.

04

The Restoration Process

Tap each step to mark complete
01

Assess the Chrome

Run your nail over any spots. If it's just surface grime, a cloth will do. If it's pitted (common on older Aussie utes), you'll need the big guns.

02

The Steel Wool Trick

For real chrome (not plastic 'chrome'), use a bit of metal polish on 0000 steel wool. Use very light pressure. This is the only way to get rid of that 'cloudy' look. I've used this on hundreds of classic cars and it works wonders.

03

Buff the Metal

Once you've worked the polish in, buff it off immediately with a clean microfibre. Don't let it dry to a crust or it's a nightmare to remove.

04

Clean the Plastic Trim

Wipe down all plastic and rubber with Isopropyl Alcohol. This removes any old waxes or silicones. If the surface isn't 'squeaky' clean, the restorer won't bond.

05

Apply Solution Finish

Put a few drops of restorer on a foam applicator. Work it into the plastic in small circular motions. You don't need much, a little goes a long way.

06

Level it Out

After about 30 seconds, lightly wipe the trim with a clean microfibre. This ensures an even finish without high spots or 'blobs'.

07

Rubber Seals

For window rubbers, use a dedicated rubber protectant (I reckon Autoglym Vinyl & Rubber Care is decent here). It keeps them supple so they don't crack in the 40-degree heat.

08

Final Inspection

Pull the car out into the sun. Shadows in the garage can hide spots you've missed. Check for any streaks or unevenness and fix them now while you've still got the gear out.

Watch Out

Most modern cars use 'chrome-look' plastic. If you use steel wool or aggressive polish on this, you will scratch the silver coating right off and see the ugly yellow/black plastic underneath. If you aren't sure if it's metal or plastic, flick it with your fingernail. Metal sounds 'tink', plastic sounds 'thud'. If it's plastic, stick to a very light finishing polish and a soft cloth only.

Dealing with Bat Droppings

If you've got bat or bird droppings on your trim, don't scrub them dry! Aussie bats eat a lot of fruit, and their droppings are incredibly acidic. They'll etch into plastic in hours. Soak a paper towel in warm water, lay it over the spot for 5 minutes to soften it, then gently lift it off. If you scrub, you're just grinding grit into your trim.
05

Keeping it Looking Good

Once you've done the hard yards, you don't want to be doing it again in three weeks. The secret is maintenance. Every time you wash the car, use a dedicated 'trim-safe' shampoo. Avoid the 'detergent' style soaps at the local self-serve car wash, that stuff is basically industrial degreaser and it'll strip your hard work away in one go. I usually apply a quick spray sealant over my trim every second wash just to keep the UV protection topped up. Honestly, if you park outside in the Aussie sun, you're fighting a losing battle unless you keep some sort of protection on there. A ceramic coating for trim (like Gtechniq C4) is a brilliant investment if you've got a brand new car and want to save yourself the hassle later on.
06

Common Questions from the Workshop

Can I use WD-40 to shine up my plastics?
Look, people swear by this, but it's a terrible idea. WD-40 is a solvent-based lubricant. It'll look shiny for two days, then it'll attract every bit of dust on the road and eventually dry out the plastic even worse than before. Don't do it.
The red dust won't come out of my door seals, help!
That outback dust is nasty. Use a soft nail brush and some soapy water. You might need to do it 3 or 4 times. Once clean, use a silicone-free rubber dressing to seal the pores of the rubber so the dust can't stick as easily next time.
My trim is turning white, is it too late?
Usually, no. That white stuff is 'oxidation'. Using a product like Solution Finish actually puts black dye back into the pores of the plastic. It's not a permanent fix forever, but it'll last a year or more if you look after it.
How do I stop my chrome from pitting near the beach?
Rinse it with fresh water as often as you can. Even if you don't wash the whole car, just hose off the chrome bits. A good quality wax or sealant on the chrome acts as a barrier against the salt.

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