Real Paint In Stick Form. Marks Bleed Through Solvent Or Oil-Based Paints. For Fabricating Structural Steel Or Layout Work Where The Marks Are Required To Bleed Through A Primer Coat Covering The Marks. To Prevent Bleeding Through The Finish Coat Seal The Marked Areas With Water-Based Epoxy Paint. For Marking Under Water-Based Primers Use The Bl-W Paintstik®