the rattlecans are a little misleading.... they actually cover really well... anything you see of mine thats gonna be sitting around awhile gets about 3 coats.. no transparency, full cover... but i do also plan to remove a bit with a thorough scuff....
when i'm doing something the "correct" way, and overcoating the zinc after it flashes off with either hi-build or paint, i do 2 light to medium coats.. and yes, you can often see thru it somewhat, but not always.. BUT don't sweat it if it's solid green.. the cans have a tendency to do that, whereas a sprayed, 2 part zinc wash tends to stay more translucent...
the only reason i mentioned the engine part was really just a reminder of it's intended purpose and that in a high heat situation, i've always felt it best to keep it on the thin side... tho to tell ya the truth i've never had it fail when it was "loaded on" on an engine.. i just feel it's a safer approach...
now, body part's, etc i wouldn't worry about it at all, as a matter of fact, i like to load it up to protect from moisture... but always keep it in mind and try to give it a thorough scuff in those circumstances to remove a few mils...
hope that kinda, sorta makes sense....
