In an old James F. Lincoln welding manual (ca. 1940) it reccomends MOM-milk-of-magnesia, for exposure to fumes from welding galvanized metals. I personally want nothing to do with galvi. If you grind and weld, you really should re-coat the weld with galvinization, or it just rusts out at the weld. HMP is not reversible as far as I know, and is not a fun ride. |