Quote:
Originally Posted by Ross F-1
Agreed, the stuff is noxious. But I have a hard time believing they couldn't tack on $10 per job in "environmental fees" to pay for a neutralizing system. Lucky they weren't sued for what they'd been doing all those years. (Maybe that's why the folded?)
|
That's another great thing about Evapo-rust. It is not an acid nor an alkali and can be disposed of down the toilet. It is not toxic in any way. For a demonstration of the difference between acid de-rusting (Vinegar) and chelation de-rusting (Evapo-rust) see here:
http://www.fordbarn.com/forum/showthread.php?t=123032
Of course, no chemical will remove old casting sand which I think is the main source of the problem cooling flatheads that are otherwise totally free of rust. Manual labor is the only way for that crud.