... WBP glue Density: 680-720KG/CBM OSB/2, MR glue, for construction indoor, furniture and packing board. OSB/3, with better ... thicker plywood or solid wood plank, have been widely used for construction outdoor, roof decking, roof sarking, wall sheathing, flooring, packaging ... to be coated. 8) Note the OSB 3 is for use on flat roof situtaions, a far better product than standard chipboard ...