I have not used SIMPLE GREEN with hot water but have used a lot of dish soap and hot water to clean black powder guns and firearms I've shot corrosive ammo through. The hotter the water the better. I think that we tend to forget that hot water and soap was about the only cleaning agents that shooters had to use for years. Or just plain hot water with out the soap.
------------------
Ne Conjuge Nobiscum
MOLON LABE
Leonidas c 480 BC
FFF
------------------
Ne Conjuge Nobiscum
MOLON LABE
Leonidas c 480 BC
FFF