Construction method of high modulus double component polyurethane building sealing paste
1) basic treatment: steel wire brush, cotton yarn and other tools to clean up the pulp, dust, etc., if there is an organic solvent to scrub clean, keep the surface dry, clean.
2) packing material: in order to satisfy the requirement of the design, the filling material is filled in the gap cavity.
3) filled polyurethane sealing paste products: according to the ratio of A:B=1:1.5, mixed evenly, add caulking gun or putty knife from top to bottom, or from the front to the back of filling; filling the requirements of full, to prevent the formation of bubbles and holes; filling is completed, in the high modulus of two-component polyurethane building table dry before sealing paste, with a putty knife scraping plane or cambered surface and the excess sealing material is scraped away.
4) in order to get a better interface bonding effect, can use the appropriate primer.