ACID RESISTANT ARMOR

KARL, being  just a plain joe, the idea of acid  resistant/proof  body
armor that is	resistant/proof against  ballistic, explosive
fragmentation, and DEW weapons is an interesting concept.

POWERED ARMOR, to me, would be the best solution to defeat or to offer
GOOD protection from all of the  above.

also why could not a VERY FAST ACTING  ACID  and  A VERY DEADLY POISON
be combined as an anti-personel weapon?