THE BONDING OF URETHANE TO METALS Urethane can be attached permanently to metals and composites very readily during the molding or casting process. Bond strength exceeding the tear strength of urethane can be achieved. The bonding process requires that the substrate must be chemically clean and free of all contamination. Cured urethane may also be bonded to metal and composites, though the bond strength is not as high as that achieved during the molding process. We can provide instructions for bonding cured urethane to other materials. NEXT: Abrasion Resistance LEFT: Urethane cable sheaves reduce noise and won't wear out the steel cable of cable cars. RIGHT: Precision bearings with tough urethane tread are available in a wide range of sizes. LEFT: Urethane lining in this metal finishing tub provides outstanding resistance to abrasion and wear plus noise reduction. RIGHT: Urethane bonded to 58" diameter Monel insert, then machined to tight specifications. Bond strength of urethane to steel at various temperatures. Design tips to improve service life of urethane components bonded to metal.