Did that black gunk actually stop any rust from starting?
I need to strip back some rust and coat in something, I don't want to make the same mistake and accidentally still that stuff on. If only you know what it was.
Could the black gunk be black Waxoyl?
I need to strip back some rust and coat in something, I don't want to make the same mistake and accidentally still that stuff on. If only you know what it was.
Could the black gunk be black Waxoyl?