Purified Polyphosphoric Acid

Asphalt modifiers are used in asphalt roads to increase the durability of roads over a broad range of temperature and traffic conditions.  Polyphosphoric Acid, a widely used modifier, significantly increases the high-temperature performance grade (PG) rating of asphalt and delivers improved resistance to rutting and superior adhesion to moisture-sensitive compositions, with no loss of low-temperature properties and performance.  Polyphosphoric acid can be used alone or in conjunction with a variety of organic polymers.

Polyphosphoric Acid is an inorganic water-free liquid, which allows total miscibility with asphalt.  The elementary composition of Polyphosphoric Acid is basically phosphorus, hydrogen and oxygen, derived from phosphate mineral deposits.