Denver Foam is round, labor saving, continuous length, compressible open-cell polyurethane foam used primarily as a non-gassing backer rod in caulking and sealant applications, such as expansion joints.

Denver Foam can be installed rapidly with any type tool without regard for surface damage. Since round, compressible Denver Foam can be installed in continuous form in joint widths of large variation without the necessity of changing backer rod sizes excessively. Denver foam can be installed two or threed times faster than conventional closed cell polyethylene or rectangular shaped backer rod materials.