Division 03 54 13: Gypsum Cement Underlayment Hacker Industries, Inc. was established upon the simple belief that when given a choice of floor underlayments, the building community would choose the product of greater value. It sets the standard in the decisions we make in suppliers, applicators and employees. Our consistent commitment to supply extraordinary value through the highest quality floor underlayments and sound control mats installed by the best Licensed Applicators remains solid and unchanged.The information contained herein is based on our best knowledge, experience, and research to date. It is not guaranteed to be accurate and we are not responsible for use of the information. This information is subject to change without notice. This information is the property of Hacker Industries, Inc., and is not to be reproduced in any form without the written consent of Hacker Industries, Inc. – http://www.HackerIndustries.com