New Ainsworth Engineered Pourform-OS is a unique overlaid OSB panel for use in concrete forms where cost savings and finish are priorities. It features an enhanced MDO paper overlay and is bonded with a proprietary waterproof blend of resins and waxes. Pourform-OS is a competitively proprietary waterproof blend of resins and waxes. Pourform-OS is a competitively priced alternative to B-B Plyform, providing a similar reuse performance while delivering a superior finish. Pourform-OS conforms to PS2-04 and is quality assured by APA— The Engineered Wood Association. Ainsworth Engineered Canada LP. 877-661-3200. www.ainsworth.ca