Construction

Construction

Gilsonite, the heavy-duty speedy standard in concrete expansion joints. The exclusive assets of Gilsonite make it a fundamental part of the manufacture of asphalt-impregnated fiberboard, namely concrete expansion joints.
Asphalt-impregnated fiberboard manufactured by Nikan West Gilsonite Co. offers the industry’s highest asphalt content, and continuously fulfills the ASTM standard. We offer a superior grade Gilsonite product for concrete expansion joints that is granular sized needless of further grinding addition to a slurry tank. This results in greater quality, efficient processes, and improved reliability.
Gilsonite provides exclusive properties that facilitate more rapid production. Gilsonite’s naturally hydrophobic feature speeds up the discharge of water as the mat is shaped. Upon heat pressing the board, Gilsonite’s bonding properties glue the fibers together, making the final board a stronger more robust product.

  • 98% Asphalt under ASTM testing
  • Naturally hydrophobic for faster mat information
  • Exceptional bonding for higher strength in finished board