The phosphoric acid we can get over here in "old Europe" ;-) has a 70% concentration. If you mix it 1:1 with water it is still nasty but not to dangerous.
Same or less concentration as in commercial products from the home depot but way cheaper.
When I did the first engine I had plenty on my cloth and skin. The old coverall has some light spots now, no skin problems since i washed it off quickly.
It is important to do it outside as I said because of the fumes.
For those who don`t like acids: Powder for dish washers works great to (need real hot water and let it sit over night). It does nothing to the rust, but removes a lot of gunk.
Frank
------------------
LIVING IN THE PAST TODAY
http://www.TheSavoy.de
