school me on weld thru primer

[pjtoledo]

looked online, prices are all over the place on different products.
from $14 for zinc aerosol to $400 for a gallon of industrial grade.

thinking sheet metal/fenders and some frame repair.

 

[bobbywalter]

tough subject. upol has some stuff.

i used the us chem from summit...it seemed....to work. but all of that metal is dust again.

i have used all of the stuff at the parts stores...3m sort of worked. por 15 has some stuff.

the k2 stuff is what i am aiming to try next...for actual paint. not sure if they have a specific weld through.

though weld thru is really a misnomer...but i digress.