Hi Gadge,
Thanks for the warning about CT-18. But was wondering if you've mixed it up with alloy wheel cleaner/degreaser which is strongly alkaline or CLR which is acidic? My bottle of CT-18 explicitly states "pH neutral". There are also no warning symbols and it pretty well states it's benign. Not even a "use gloves" on the bottle.
I used a very dilute solution, 2 capfuls in approx 5 lt of water. I even used bare hands due to lack of warnings. It actually didn't have much effect on the grime (or my hands)!
Ended up using 1.5 cans of spray degreaser and a pressure washer and still can't get all the grime off...mostly done though and should be thoroughly de-CT-18ed.
Will use CT-18 at a stronger rate and with gloves next time. May even try it through the pressure washer.
Maybe CT-18 ain't what it used to be anymore?!
Cheers,
