Hot Rod is a backup material for most hot pour sealants used to fill contraction and expansion joints of concrete highways, runways, driveways, and parking lots.

Hot Rod is an extruded round, closed cell, low-density polyethylene foam material which has been specifically crosslinked to withstand temperatures in excess of 400°F.

Hot Rod is chemically inert and will resist oil, gasoline, and most other solvents. This material will not stain, soak up moisture, nor adhere to sealant materials and is non-exuding.