Ultimate RB is the world leader in recycled rubber technology based on polyurethane innovation. What started in 1985 as one m ... an's vision to keep used tires out of a local landfill has evolved into a leading manufacturer of recycled rubber products. Today, Ultimate RB is one of the largest and most technically advanced tire recyclers in the world with the ability to make quality products that contain up to 96% post-consumer waste. read more