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一、聚氨酯涂膜防水的发展概况凡在基层表面上涂刷一定厚度(一般厚度在1.5～2.0毫米之间)的无定形粘稠状液态的聚氨酯防水材料,经过常温交联固化能形成一个整体橡胶状的弹性涂膜,以起到防水层作用的施工方法,称为聚氨酯涂膜防水。这种弹性涂膜防水是为了改善传统的沥青系防水和卷材防水的不足,近20多年来才在欧、美、日等国发展起来的一种新材料和新工艺。美国是早最使用聚氨酯涂膜防水的,他们用聚氨酯制成的双组份液态橡胶型涂膜防水材料,除在美国本土推广应用以外,还大量销售到加拿大,中东以及东南亚各国施
First, the development of waterproof polyurethane coating film Where a certain thickness on the surface of the base layer (usual thickness of 1.5 ~ 2.0 mm) of the amorphous viscous liquid polyurethane waterproof material, cross-link curing at room temperature can form a whole The rubber-like elastic coating is used as a waterproof layer and it is called a waterproof polyurethane coating. This kind of elastic coating waterproofing is to improve the traditional asphalt waterproofing and membrane waterproofing deficiency. It has been developed in Europe, the United States, Japan and other countries for more than 20 years. It is a new material and new process. The United States is the first to use waterproof polyurethane coating film, they made of polyurethane two-component liquid rubber coating waterproof material, in addition to promoting the application in the United States, but also a large number of sales to Canada, the Middle East and Southeast Asian countries