J-Band is applied under the longitudinal joint in new asphalt, and migrates upward as the hot mix is installed on top of it. This bottom-up quality sets apart J-Band from any other longitudinal joint treatment – not only extending the life of the joint, but improving performance of the entire pavement as it:
- Stabilizes the unconfined edge.
- Dramatically reduces air voids.
- Nearly eliminates permeability.
- Significantly extends the life of the joint.