What You'll Learn
Aussie Conditions
Look, we've all been there. You wash the car on a hot Saturday arvo, the phone rings, you get distracted, and by the time you're back, the sun has baked those water beads into nasty little craters. Or maybe you've got a mate with a bore-water setup that's absolutely trashed your paint. This guide is for anyone dealing with mineral etching, whether you're fighting red dust build-up from a trip out west or salty sea spray on the coast. I'll walk you through the gear you actually need and the steps to get that paint smooth again.
The Reality of Aussie Water Spots
The Gear You'll Actually Need
What You'll Need
While you're here...
Preparation is Everything
Find some shade
I cannot stress this enough. Do not even think about doing this in direct sunlight. If the panel is hot to the touch, you're going to have a bad time. Let the car cool down under a carport or in the garage for an hour first.
The Deep Clean
Give the car a proper wash using the two-bucket method. You want to get every bit of red dust, salt, and grime off. If you leave dirt on there and start rubbing with a spot remover, you're basically sanding your car with grit.
Dry it thoroughly
Use a big microfiber drying towel. We need the surface dry so we can actually see where the mineral deposits are hiding. Look at the glass first, they're usually easiest to spot there.
The Step-by-Step Removal Process
The 'Is it Surface or Etched?' Test
Run your fingernail gently over a spot. If it feels like a little bump, it's a mineral deposit sitting on top. If it feels like a tiny crater, it's etched. We'll treat the bumps first.
Apply the Chemical Remover
Chuck a small amount of your water spot remover onto a microfiber applicator. Work in a small area, maybe half a door at most. Don't try to do the whole car at once or it'll dry on, and then you've got a real mess on your hands.
Agitate Gently
Work the product in circular motions with light pressure. You're letting the acid in the cleaner dissolve the calcium. Give it about 30-60 seconds to dwell, but don't let it dry!
Wipe and Inspect
Wipe the area clean with a fresh wet microfiber, then dry it. Check it from a few angles. If the spot is gone, beauty. If not, give it one more crack.
Clay Bar (If needed)
If the spots are stubborn, use a clay bar with plenty of lubricant. This is great for those cars that have been parked near the coast where salt and minerals form a crusty layer.
Rinse Thoroughly
Once you've finished a panel, rinse it with heaps of water. You want to neutralize any chemicals left behind. (Trust me, I once left a citrus-based cleaner on a plastic trim for too long and it turned it chalky white. Not a fun conversation with the missus when it's her car.)
Dealing with Etching
If the chemical didn't work, the spots have etched into the clear coat. You'll need a light polish here. Apply a pea-sized amount of polish to a foam pad and work it in until the 'craters' disappear.
The Glass Trick
For windows, you can be a bit more aggressive. I often use a 0000 grade steel wool with some glass cleaner for really bad water spots on side windows. Just don't do this on the paint or your mirrors!
Final Wipe Down
Do a final lap of the car with a quick detailer or some distilled water to make sure no residue is hiding in the gaps.
Watch Out
The 'Old School' Vinegar Myth
The 50/50 Check
Keeping the Spots Away
Common Questions
Can I just use a regular polish to get rid of them?
Will a ceramic coating prevent water spots?
Why did my spots come back after the next wash?
Is bore water really that bad?
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