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Keeping Your Caravan Mint: Dealing with Red Dust, Salt, and That Brutal Aussie Sun

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

Cleaning a caravan isn't just a bigger version of washing the car. Between the textured cladding, solar panels, and that stubborn outback red dust, you need a specific plan to stop your home-on-wheels from looking like a neglected garden shed.

B"W
Barry "Bazza" Williams Product Reviewer
| Updated: 28 February 2026
Keeping Your Caravan Mint: Dealing with Red Dust, Salt, and That Brutal Aussie Sun

Aussie Conditions

Aussie red dust is iron-rich and bonds to paint. A regular rinse won't cut it—you need proper pre-wash and pH-neutral soap to avoid scratching.
Quick Summary

Look, I’ve seen it all, from brand-new Jaycos covered in bat droppings to old Coromals that have clearly done the Nullarbor three times without a wash. This guide is for anyone who wants to protect their investment and actually enjoy their next trip without staring at streaks. We’re going to cover everything from safe roof cleaning to getting rid of that 'permanent' red dust haze. It’s a bit of a job, but do it right once and the next wash is ten times easier.

01

Why Caravan Cleaning is a Different Beast

Right, let's be real. Washing a caravan is a bit of a mission compared to the daily driver. You've got massive surface areas, weird materials like checker plate and acrylic windows, and usually a thick layer of road grime that’s been baked on by a 40-degree February sun. I learned this the hard way years ago when I tried to use a heavy-duty degreaser on a mate's older camper, it stripped the wax and left the decals looking like they'd aged twenty years in twenty minutes. Never again. Now, especially with the summer heat we get here in Oz, you've gotta be smart about the products you use and how you use them. If you've just come back from a coastal trip or a run through the red centre, that salt and dust is eating into your seals and paint as we speak. Let's get it sorted before the missus starts complaining about the 'dirty eye-sore' in the driveway.
02

The Gear You’ll Actually Need

What You'll Need

0/8
A sturdy ladder — Don't trust the dodgy old one in the shed. You need something stable to reach the roof safely.
Boars hair or soft microfiber wash brush — With a long extendable pole. Don't use those stiff bristled ones from the servo; they'll scratch your gelcoat.
Two 20L buckets with grit guards — One for soapy water, one for rinsing your brush. Essential for not scratching the finish.
Dedicated Caravan Wash — I reckon Bowden’s Own 'Nanolicious' or Autoglym 'Conditioning Shampoo' are top tier. Avoid dish soap at all costs.
Non-acidic Wheel Cleaner — Something like P&S Brake Buster. Good for the tyres and the rims.
Microfiber drying towels — The big 'pattie' style ones. You’ll need at least three or four for a full-sized van.
Acrylic-safe window cleaner — Most caravans have plastic windows. Standard Windex will ruin them over time.
A foam cannon (optional but bloody helpful) — If you've got a pressure washer, this makes life 100% easier.
03

Preparation is Key

Tap each step to mark complete
01

Find the Shade

Never, ever wash a caravan in direct 2pm summer sun. The water will dry before you can rinse it, leaving nasty water spots. If you don't have a big enough shed, do it early morning or late arvo.

02

Seal Everything Up

Double-check every hatch, window, and door. Check the fridge vents too. I once had a customer leave their bathroom hatch cracked open, it wasn't a pretty sight inside after the pressure washer had its way.

03

Pre-Rinse the Grime

Give the whole thing a good hose down with plain water. You want to knock off the loose red dust and grit before you touch it with a brush. If it's really caked on, let the water soak in for 5 minutes.

04

The Main Event: Step-by-Step

Tap each step to mark complete
01

Start with the Roof

Always start at the top. If you do it last, all that dirt will run down over your clean sides. Be careful up there, caravan roofs can be slippery and some aren't 'walk-on' rated. Use your long-reach brush and work in sections.

02

Solar Panel TLC

Dust and bird muck on your panels can kill your charging efficiency by 30% or more. Use plenty of water and a very soft cloth. Don't use chemicals here, just a bit of your car soap and a good rinse.

03

The Foam Soak

If you've got a foam cannon, coat the sides now. Let it dwell for 4-5 minutes but don't let it dry. This helps break down the static bond of that fine Aussie dust.

04

The Two-Bucket Wash

Wash one side at a time, working from top to bottom. Dip your brush in the soapy bucket, scrub a section lightly, then rinse the brush in the clean water bucket. This keeps the dirt out of your soapy mix.

05

Dealing with the Checker Plate

That aluminium checker plate on the front is a magnet for bugs. I usually use a dedicated bug remover spray like 'Bugger Off' and let it sit for two minutes before agitating with a soft brush.

06

The Awning

Roll it out! Most people forget this. Use a mild soap solution and a soft brush. If there's mildew (common after a humid Queensland trip), you might need a specialized awning cleaner. Let it dry completely before rolling it back up, or it'll smell like a swamp next time you use it.

07

Wheels and Underbody

Give the chassis and suspension a good spray, especially if you've been near the coast. Salt loves to hide in the nooks of your leaf springs and brakes.

08

The Final Rinse

Give the whole van a final, thorough rinse. Pay attention to the window seals and door frames where soap likes to hide.

09

Drying

Don't let it air dry in the sun or you'll get spots. Use your big microfiber towels. It’s a workout, but the finish is worth it. (Your partner will thank you when it's not covered in streaks).

10

Acrylic Windows

Dry these specifically with a clean, high-quality microfiber. These scratch if you even look at them funny, so be gentle. Use a plastic-specific sealant if you want them to stay clear.

Watch Out

Look, I love a pressure washer, but be bloody careful around caravan seals, vents, and decals. If you get too close with a high-pressure nozzle, you'll strip the adhesive off your stripes or, worse, blast water past the window seals into your wall cavity. Keep the nozzle at least 30-50cm away at all times.

The Red Dust Secret

If you've got that fine red dust that won't budge from the white fiberglass, try a product called 'Iron X' or a similar fallout remover. It reacts with the iron in the outback soil and helps lift it out of the pores of the paint. It smells like rotten eggs, but it's magic.

Watch Out

Some of those heavy-duty truck washes you find at servos are incredibly alkaline. They're designed for stainless steel fuel tankers, not painted aluminium or gelcoat. They can dull your finish and perish your rubber seals in a single wash. Stick to pH-neutral stuff.
05

Protection for the Long Haul

After 15 years doing this, I've found that the wash is only half the battle. Our UV is brutal. If you leave your van bare, the sun will chalk up that gelcoat faster than you'd believe. Once the van is dry, you really should apply a sealant. Personally, I wouldn't bother with a traditional wax, it takes way too long on a 22-foot van. Use a high-quality ceramic spray sealant like Gtechniq C2 or Meguiar's Hybrid Ceramic Wax. You just spray it on a wet or dry panel and wipe. It'll give you 6 months of protection and makes the next wash a breeze because the dirt can't stick as easily. Also, treat your window seals with a rubber conditioner (303 Aerospace Protectant is my go-to) to stop them from cracking in the heat. It takes an extra hour, but it'll add thousands to your resale value down the track.
06

Common Caravan Cleaning Questions

Can I use a broom to wash my caravan?
Honestly, I wouldn't. Most household brooms are way too stiff and will leave fine swirl marks all over your paint. Spend the $50 on a proper soft-bristled wash brush designed for vehicles.
How do I get black streaks off the sides?
Those come from the rubber seals on the roof or windows degrading. A dedicated 'Black Streak Remover' works, but often a light polish or even a bit of WD-40 on a rag (wash it off immediately after!) will do the trick.
Should I wax my caravan?
Wax is okay, but in the Australian summer, most waxes melt and disappear in weeks. A synthetic sealant or ceramic spray is much better suited to our high temperatures.
Is it safe to go through a truck wash?
The automated ones? I'd avoid them. The brushes are usually full of grit from the last muddy semi-trailer that went through. Do it yourself or find a bay where you can use your own gear.
07

The Bottom Line

At the end of the day, a caravan is a huge investment. A bit of elbow grease once or twice a year keeps it looking new and stops the rot from setting in. Just remember: start high, use the right gear, and don't skimp on the UV protection. Anyway, that's enough from me. Give it a crack this weekend and you'll be the envy of the caravan park on your next trip. No dramas!

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