To reduce the VOCs used in PU-based coatings, Yantai Wanhua Polyurethanes Co. Ltd. developed waterborne technologies including PUD, PUA and waterborne 2K.
After an inauspicious introduction more than a half-century ago, vinyl acetate-ethylene technology finally appears poised to go mainstream in the coatings market.
Experiments with a water-based thixotropic pigment paste have shown that the throughput is a key parameter in the grinding of such a material with a non-ideal flow behavior.