Rohm and Haas has launched Ropaque Ultra-E, an organic opacifier that allows the formulation of waterborne paints at an optimum cost performance while improving paint properties such as dirt-pick-up, exterior durability, scrub resistance and resistance against mud-cracking, according to the company. It also offers enhanced tint retention. This latest generation opacifier technology is solvent-free, APEO-free and ammonia-free. More info: Rohm and Haas, 44-20-8774-5300 • Fax: 44-20-8774-5301 • Web: www.rohmhaas.com.