Gilsonite is used as a performance-enhancing agent for asphalt mixes. Gilsonite can partially or totally replace, or complement, the use of SBS polymers in modified asphalts at a fraction of the cost. Gilsonite-modified asphalts have higher stability, reduced deformation, reduced temperature susceptibility and increased resistance to water stripping than non-modified asphalts. Gilsonite is also used to make both solvent-based and emulsion pavement sealers with superior appearance and weathering properties.

As an aggregate modifier, Gilsonite can be added directly at the hot mix plant with no additional equipment. The excellent bonding properties of Gilsonite will produce a high-strength, high-performance pavement that also resists water stripping.

  • High strength and durability

  • Superior deformation performance

  • Reduced pavement thickness

  • Reduced temperature susceptibility

  • Increased resistance to water stripping

Gilsonite makes roads stronger to last longer.


Gilsonite’s proven properties make high-performance solvent-based and emulsion pavement sealers dry quicker, look better and last longer. Gilsonite is Naturally Better®. As a natural antioxidant, it allows pavement sealers to stay blacker longer. Gilsonite’s unique molecular fractions rejuvenate the pavement being sealed. The strong bonding properties of Gilsonite help weatherproof the sealer.

Making longer-lasting pavement helps the environment. By rejuvenating pavements with recycled asphalt instead of replacing them, there is a proven significant reduction in energy used as well as a reduction in required resources

  • Natural antioxidant

  • Rejuvenates pavement

  • Excellent bonding properties

  • Superior appearance and weathering properties