We print a ton of heavy metal / punk / hard core all that and discharge underbase with HSA on top is the way to go in our shop. Replacing plastisol and getting into sim process with it. So much easier to print this way and the clean up is a breeze. Permaset makes a "first down white" that is supposed to replace discharge underbase. However, we have three in house mixes for our discharge underbase so I don't see it replacing all three
