okay this is a thought it is water base could you paint it on a larger parts and rise it of with a hose? or go to tractor supply and get a wash tub and fill that dip the parts then when put it back in the container that purchased it in?
from what I read...parts needs need to sit in the solution for a while...spraying or wiping it on wont work for heavily corroded parts cause it will evaporate before having a chance to work...never used...just what I've read