Cross-linked polyethylene foam waste was thermomech. degraded and blended with virgin polyolefins in a kalender or rheomixer at 150 degrees C. The blends were foamed with azodicarbonamide and crosslinked with (PhCMe2O)(2) at 220 degrees C and studied for tensile strength, elongation at break and melt flow index. The addn. of blends did not result in any substantial deterioration of the foam properties.