PU Wood, PU coatings

PU Wood are all collectively polyurethane coating, it is a natural way of filming a film, no special process. A two-component polyurethane paint chemical structure: Group A points (curing agent) isocyanate groups (-NCO) + Part B (paint) hydroxyl group (-OH) = polyurethane polymer (film), diluent (day That water) only regulate the viscosity, to facilitate construction of the dilution effect. PU-based paint composition, curing agents, diluents. PU paint has strong permeability and applicability, can penetrate into the surface of the wood inside, even floors containing high fat (such as teak) may apply. The film after the film is thin, shiny symmetry, transparency, can be a good show floor natural texture and color. General household paint wood into: NC paint, UV paint and PU paint. Various types of paint have their own characteristics, but comparatively speaking, where PU paint in environmental protection, adhesion, sealing, flexibility and transparency film are stronger than other types of paint, home decoration and therefore Wood a good choice. PU paint due to the characteristics of their molecular structure, high elongation at break of PU film, good flexibility, good control of the thermal expansion and contraction caused by the effect of the floor to extend the film, the film is not easy to crack after use too easy to fall off. PU topcoat anti-pounding capacity and wear resistance than the strong UV paint. Paint film adhesion and anti-pounding capacity and wear resistance than the strong PU, for decorative and protective coverings are very good, not only the family can use wood and floors, some have special properties of special PU paint with high quality crafts, piano and even large aircraft painting can be fully qualified. In addition, PU paint film having a relatively excellent chemical resistance, not only water, more acid, alkali, salt and all kinds of household chemical cleaning agents, scratch and corrosion resistance. Because PU paint can be drying, low temperature curing can also be used in a wide temperature range, thus the construction season is relatively long. PU paint consumers use the time to pay attention to the following matters: 1. Disable lacquers primer products, to avoid biting the end; 2. letdown in strict accordance with the dilution ratio, must not use the wrong hardener, or may result in poor film properties, such as yellowing, embrittlement 3. Keep the environment clean construction, the construction should avoid water, dust and contamination; 4. varnish coating should not be too thick to avoid deterioration of film transparency, blistering and other ills; 5 After the bottom of the film should be thoroughly dried and polished before re-coating, such as coating intervals over 24 hours should be thoroughly polished to enhance adhesion between the layers; 6. mixed paint was required to be used within the specified time, otherwise it will affect film properties, not the remaining mixture back into the original paint; 7. paint, curing agents if they failed once used, it must be immediately sealed to prevent moisture absorption due to solvent evaporation or affect the quality of the paint and the results; 8. Packing remaining diluent may be used for cleaning painting tools. http://www.zshthb.com phone 13715593601