Converting my system from an OIL based sealer to a COAL tar sealer Home › Forums › Sealcoating Equipment Forum › Converting my system from an OIL based sealer to a COAL tar sealer This topic has 0 replies, 1 voice, and was last updated 13 years, 2 months ago by Anonymous. Viewing 1 post (of 1 total) Author Posts September 26, 2011 at 7:47 pm #5608 AnonymousInactive I want to convert my machine from an oil based sealer to a coal tar sealer. Is this possible? What would I need to do to make this happen? many thanks, Mike Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In