watto wrote:Yea I can confirm milk does fix galv sickness, its saved me many a time, the symptoms are similar to cyanide poisoning. I never heard of using acid on galv before welding, I’ll have to try it, Ive always just sanded the area a bit with a flap disc.
hydrochloric acid reacts with zinc to form zinc chloride and hydrogen gas you will know all the zinc is gone once the aria stops fizzing and bubbling then it is time to remove from the acid and thoroughly clean the metal of all acid if you do not, it will cause the steel to rust badly also the WD-40 helps protect the steel once you are done cause after the acid is done with it there is nothing protecting it
also I cannot over emphasize enough to be careful with Hydrochloric acid really nasty stuff so be careful
also on the fume fever topic if you get a metallic taste in your mouth like pennies you know you have fume fever and it is time to empty the milk jug