UHMWPE identification methods: Weighing law. The proportion of products made of pure UHMWPE between 0.93-0.95, smaller density high molecular weight polyethylene sheet prices, can float on water. If it is not pure high molecular weight polyethylene sheet polyethylene material, it will sink to the bottom. Temperature measurement. Pure UHMWPE products, at 200 degrees Celsius is not melting the high molecular weight polyethylene sheet plant, it will not be deformed, but become soft. If it is not pure UHMWPE material at 200 degrees Celsius there will be deformed. Ultra high molecular weight polyethylene plate has an extremely low friction coefficient (0.05 to 0.11), it has excellent self-lubricating. UHMWPE rubbing factor in moving it under water lubrication is PA66 and POM 1/2, second only to the best self-lubricating plastic polytetrafluoroethylene (PTFE) in the absence of lubrication; when it is sliding or rotating When in the form of work, even better than steel and brass add oil after lubrication.