Gypsum supplier Hacker Industries Inc. recently announced a new series of comprehensive training seminars for licensed applicators that began in March. The two-day training seminars will focus on the company's self-leveling underlayment product line - TRUE-SCREED® Cementitious Leveling Underlayment and DYNA-SCREED™ SLU. Experts will provide instruction on preparation techniques and installation guidelines for the new hydraulic cement-based floor underlayments, as well as step-by-step methods for successfully preparing slabs before installation, industry terminology, estimating and sales. For details, call 800/642-3455 or e-mail Hacker at