| 摘要 |
PURPOSE:To smooth out small uneveness on the surface of a plywood. CONSTITUTION:A resin compsn. contg. a blowing agent in addition to the main component consisting of a water-sol. polymeric resin and an inorg. solvent and having a solid content of 70wt.% or higher is applied to a plywood to prevent and the vol. shrinkage due to grain depression after applying, twisting and warping the plywood, clogging during sanding, etc. |
