Uhmw Crane Outrigger mats – UHMW PE Sheets, HDPE Sheets, High Uhmw Crane Outrigger mats Features. 1. Ultra-high molecular weight polyethylene UHMWPE pads have extremely high impact strength, which is 10 times better than HENAN Okay and polypropylene (PP); 2. The wear resistance of UHMW is excellent.