Overview There are basically two kinds of sealers: shiny and dull. Sealers that dry shiny are asphalt-based, such as Gilsonite or Blackmac, they are basically a cutback asphalt with a solvent. Gilsonite salesman will tell you that oil base sealant is the best because it penetrates deep into the asphalt to rejuvenate and refurbish it by adding asphalt […]
