| abstract |
The invention discloses a chromium-free zinc-aluminum-nickel paint combination product. The product comprises independently packaged liquid A and liquid B; the raw materials contained in liquid A and the parts by weight of each raw material are: 20-26 parts of zinc powder, 3-6 parts of powder, 0.1-0.5 part of nickel powder, 0.1-0.4 part of leveling agent, 1-6 parts of coupling agent, 30-45 parts of solvent, 0.1-0.5 part of defoamer; The parts by weight of the raw materials are: 28-32 parts of composite organic resin, 0.5-1.2 parts of silane coupling agent; after mixing liquid A and liquid B, stirring, coating on the substrate, pre-baking at 80-140 ℃ for 10min, 230 ‑280℃ for 25mins, and then naturally cooled to room temperature to form a film on the substrate. The product of the present invention is used for treating metal substrates, and has the advantages of no chromium, good weather resistance and permeability. |