i was planning on doing some diy aluminum anodizing. does anyone know where i could get a high concentration of sulfuric acid. i went to this lab supply inside UP campus, the lady there said that its tech grade, but she dosent know what percent. i did some online research and found out that lab grade sulfuric acid are the least concentrated of all, lower than battery acid.

on the other hand, does any one know a place where i could get my aluminum pieces anodized and will it be cheaper?