Should have the high resistance to emulsion and the good shear stability, favors with the extension working life.

Using silane coupling agent to copolymer with vinyl acetate, the water resistance of the polyvinyl acetate emulsion is improved, and the compress strength is praised.

It is shown that conventional emulsion polymerization process leads to high gloss film and soap-free or micro-soap processes will lead to good water resistance and lower foaming.