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在日本,纤维板日益广泛地用于建筑部门。为了改善和提高纤维板的强度、耐水、耐湿等材质性能,曾采取过许多措施。例如,在制得的纤维板表面上,涂布干性油,但油不能完全浸透板内,因而对板的性能改进不大。再如,利用液体沥青(如热液)涂布纤维板表面,但沥青渗透性能不佳。还有将沥青乳剂加入纤维浆液中,用硫酸胶合剂使其粘附在纤维上;利用高溶点沥青(溶点180～250℃)或将溶点150～200℃的沥青粉末撒在纤维浆液中压制纤维板,效果较好。
In Japan, fiberboard is increasingly used in the construction sector. In order to improve and improve the strength of fiberboard, water resistance, moisture resistance and other material properties, has taken many measures. For example, dry oil is applied to the surface of the resulting fiberboard, but the oil does not completely penetrate the board, and thus the performance of the board is not greatly improved. For another example, the surface of the fiberboard is coated with a liquid bitumen (such as a hot liquid), but the asphalt has poor permeability. In addition, the bitumen emulsion is added to the fibrous slurry and adhered to the fiber with a sulfuric acid binder; high-melting-point bitumen (melting point of 180-250°C) or bituminous powder having a melting point of 150-200°C is sprinkled on the fiber slurry. Pressing fiberboard in the effect is better.