聚氨酯建筑密封胶用底涂的应用研究

Application Study on Primers for Polyurethane Sealant

通过对单组分聚氨酯密封胶适用底涂的试验研究,给出了不同建筑基体的适用底涂的选用方法:密实坚固的建筑基体的最佳选择为界面处理剂类底涂;多孔坚固的建筑基体的最佳选择为环氧类底涂;密实疏松的建筑基体的最佳选择为高渗透基面加强类底涂。

By experimental study on primers for polyurethane sealant,this paper introduces ways of selecting applicable primers for various substrates：interface agent category is the best for dense and solid substrate,epoxy primers for porous but solid substrate and highly permeable fortified primers for porous substrate.