How to improve the anticorrosive performance of polyurethane
发布时间： 2019-10-21 13:10 Author: Polyurethane foam machine Source: http: //motokone.com
Published: 2019-10-21 13:10
If you want to make the polyurethane anticorrosive anticorrosive coating have better anticorrosive effect, there are certain requirements for the physical properties of the coating.
1. Polyurethane anticorrosion should have good adhesion and certain strength. In order to improve the adhesion of the polyurethane anticorrosive coating, it is often necessary to strictly control the selected base material, and sometimes even to modify the base material. In this respect, there are relatively many types of organic film-forming base materials, and the range of choice is large, while the choice of inorganic coatings is less.
2. The air permeability and water permeability of the polyurethane anticorrosive layer should be as low as possible. Therefore, the polyurethane anticorrosion should use a base material with low air permeability and a filler with large shielding effect. If the polyurethane anticorrosive paint peels off during construction, it is related to the surface of the coating being smooth.
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