THE RESULTS

Just one day after starting, the untreated control plate is already covered in rust, which indicates how brutal and accelerated this test is. After one week, the original Rust Blocker plates are in the best condition. Those treated with Clear Coat have a very light amount of corrosion, while the ACF-50 plates show slightly more orange. After the full two-week test, the difference is even greater. The ACF-50 plates have significant surface rust, with more than 50% of the plate now orange. Sure enough, it’s been beaten by XCP’S Clear Coat, which itself isn’t too far behind the original, full-strength Rust Blocker.

Pinhead dots of rust suggest the aerosol isn’t quite as effective as the trigger bottle.

Impressive rust protection. Bottom edge, where it was wiped proved most vulnerable.

ACF-50 is easier to apply in aerosol form, though anti-rust performance proves the same.

The best protection. An incredible performance, even on the area that was wiped.

Small ACF trigger bottle is fiddly. Gives great protection at first, but it doesn’t last.

Slightly messier to apply than the trigger pump but similarly superb protection.