Numerous scientists are closely related with studies of green composite materials properties. Wood plastic composites (WPC) are ones of them because WPC are perspective and widely used materials in different branches of industry [1-2]. In researches [3-6] are shown that plywood production by-products as reinforcement of polypropylene (PP), are able successfully combine. Plywood are being used a lot in construction industry with heavy loads and it’s needing to be protected. Traditional paper-resin laminates are thin and easy damageable while thick plastic laminates are expensive. Our investigation focusses on WPC composite usage as overlay and adhesive activity between the birch plywood. Results show adhesion strength differences between damaged and non-damaged overlay