He called his product, which weighs 18 pounds per cubic foot, ``a true foam, with air bubbles trapped in it''-and the ``first commercially viable light-weight foam fill for tires.'' A polyurethane ...

Following is a transcript of the video. Narrator: This is a tire technician disassembling what's known as a foam-filled tire. It's a grueling process, but an important one for these special kinds of ...

Urethane International L.L.C. has launched a program to create a nationwide network of about 500 dealers to handle its recently patented polyurethane foam flatproof material and machines. The company ...

Puncture-proof tires, either solid or foam-filled, are popular items on rental machines and machines used in hostile environments, such as demolition, landfills, and quarries. Solid tires sometimes ...