Polyurethane bar capping from Yantai Zhengyuan Polyurethane Co.,Ltd. is specifically designed casting product to cover and protect the steel stringer bar on vibrating screen, and prevent the underside of the screen cloth from excessive wear and damage. So it is also called polyurethane stringer bar capping. Polyurethane bar capping from Yantai Zhengyuan Polyurethane Co.,Ltd. is made of excellent polyurethane from well known companies in the world. The superior polyurethane used has following advantages. Rubber elasticity,Metal toughness and durability and Plastic shape and color flexibility Broad range of adjustable hardness Corrosion resistant Abrasion resistant Oil and solvent resistant Load bearing capacity Tear resistant Excellent noise abatement properties Ageing resistant So PU bar capping from Yantai Zhengyuan Polyurethane Co.,Ltd. comes in excellent features as ozone, wear and impact resistance etc. Comparing with rubber bar capping, polyurethane bar capping is with a working life of 7 times longer.