Walter 53G537 Heavy-Duty Citrus Degreaser Asphalt & Tar Remover 5.2 gal Pail The Heavy Duty Citrus Degreaser cleans and emulsifies to breakdown difficult contaminants such as asphalt, bunker, carbon, grease, oil and tar residue that are bound on all surfaces. It's 100% natural base made with D-Limonene is the perfect alternative to petroleum based products. Product Features No need for dilution 100% Natural Solvent & D-Limonene High flash point of 75°C (168.8° F) NSF category K1 , registration #163464 Applications Recommended to clean soiled concrete floors, hydrocarbons, tar, bunkers, piping soil, etc. Great for paving, mining equipment No need for dilution 100% Natural Solvent & D-Limonene High flash point of 75°C (168.8° F) NSF category K1 , registration #163464 Recommended to clean soiled concrete floors, hydrocarbons, tar, bunkers, piping soil, etc. Great for paving, mining equipment