Milkstone remover?

[whity]

In the past we have used Phosphoric acid (milkstone remover) this year the color of the product is pink and also has sulfuric acid as an ingredient. Is it safe to use on welded pans?

[Super Sapper]

As long as used as directed it should be fine, after all it is for stainless in the dairy industry. Sulfuric acid becomes a problem at about 70% concentration. At that concentration it will eat even 316 stainless.