What You'll Learn
Aussie Conditions
Look, I've seen too many good 4x4s scrapped because the owners ignored the belly of the beast. Whether you're hitting the beach at Noosa or doing a dusty run through the Red Centre, the salt and grit will find a way in. This checklist is what I use in my shop to make sure a vehicle is actually protected, not just covered in shiny gunk. It's a bit of a grubby job, but do it once and do it right and your chassis will thank you.
The Gear You'll Need
What You'll Need
While you're here...
Pre-Start Checklist
What You'll Need
The Game Plan
Deep Clean
Blast every inch of the underbody. Use the degreaser on the muddy bits and let it dwell for 10 minutes before rinsing thoroughly.
The Drying Game
This is crucial. You can't spray sealant over water. I usually leave it in the sun for a few hours or use a leaf blower.
Mechanical Prep
See any flaky rust? Scrape it off with the wire brush. If it's bad, hit it with a rust convertor like Bowden’s Own 'Rust Rescue'.
Masking Off
Wrap your brake discs in plastic bags. Honestly, I wouldn't bother with fancy masking tape elsewhere, just be careful where you point the nozzle.
The First Pass
Start with the 'internal' sections. Spray into the chassis rail holes until the lanolin starts dripping out. That's where the salt hides.
The Outer Coat
Spray a nice even coat over the rails, floor pans, and suspension components. Don't go too thick or it'll just attract more dust.
Final Inspection
What You'll Need
Expert Advice
Watch Out
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