I have applied two mist coats and this stain is still coming through.
I have no idea what it is. Its not raised or anything.
Am I right in thinking that I need to use something like Zinsser Bin to block this stain before I apply the top coat?
I have no idea what it is. Its not raised or anything.
Am I right in thinking that I need to use something like Zinsser Bin to block this stain before I apply the top coat?