The construction operation and matters needing attention of waterborne industrial paint have?

Waterborne industrial coatings is a kind of different from oil-based industrial coating is a new type of green rust anti-corrosion coatings, it with water as diluent, don't need a curing agent and diluent as solvent. Waterborne industrial coatings are widely used in Bridges, steel structures, ships, mechanical and electrical, steel, and other fields. Due to its energy conservation and environmental protection, won't cause harm to human and environment and pollution, therefore very popular with the users. Next, KeBao building materials will share water-based industrial paint construction operation and matters needing attention. Waterborne industrial paint operation 1. Surface treatment: surface treatment including degreasing, polishing, cleaning and phosphating. According to the surface state of workpiece, water-based paint work environment, construction requirements and workpiece can be used in whole or in part. The salt fog resistance. Recommend the phosphating. Coated surfaces shall be clean, no oil and floating ash. 2, besmear brushs methods: construction with spray, brush and roller coating, and adding suitable amount of water dilution. Spraying, the spray gun regulation of different viscosity, and adjust the spray gun diameter on site. Don't add too much water. 3. Methods: coating is dry in the process of coating, coating film thickness, temperature and humidity and air circulation has a great influence on the drying performance of paint film. Therefore, for the dry coating, when the temperature is below 5 ℃ or humidity higher than 75%, the recommended drying facilities construction. 4. Baking paint when construction, baking baking line leveling time not less than 15 minutes, baking time control in 20 - 25 minutes. Time not too long, baking temperature control at 120 ℃, the temperature may not be too high. 5. Film coating requirements: the paint film is recommended minimum thickness greater than 30 microns, after construction to achieve the ideal rust resistance; The second paint, first should be completely dry, otherwise the bit at the bottom of phenomenon occurs on the second paint, paint film will wrinkle. The gap between the two should be 24 hours at least. Note 1 waterborne industrial coatings construction. When diluted with water, should pay attention to the water ph value, prevent water acidic, acid will influence the stability of the coating solution after joining. Can appear when acidic water to join the paint, incompatibility, and a transparent solution. Should be used to regulate its ph regulator, dilution should follow the principle of a few times. 2. Product should be stored in the 5 - unopened 35 ℃, avoid high temperature or store below 0 ℃. The remaining paint should be kept, and promptly with the lid sealed, keep ph in 7 when repeated use. 5 - 8. 5. 3. When using the dry coating, the temperature is lower than 5 ℃ or humidity higher than 75%. Heating should take appropriate measures or prolong the drying time, and increase ventilation to facilitate drying. 4. Coating paint film after drying, spraying room and leveling room temperature should be controlled in 15 30 ℃, humidity should be controlled in 30 - 75%. Temperature and humidity influence on the performance of the paint film surface effect, spraying and drying performance. 5. When the workpiece is spraying and coating did not completely dry, substrate temperature must be above the dew point temperature, to avoid moisture condensation, and prevent the paint film to soften. 6. Paint the actual coating rate depends on the coating method and the method, basal shape and surface characteristics, Roughness and flatness) 。 7. Coating in use process, prevent pollution, affects the effect of surface coating. Coating to keep the environment clean. For example, should the amount of dust in controlled environment. Otherwise, the coating film with dust fall, and affect the surface effect when not dry. 8. Spraying, pay attention to the pump and pump pressure is normal, whether the gas supply can meet the requirements of normal spraying, whether there is oil and water in the pump. Small air pump, low gas pressure, gas supply is insufficient, spray atomization effect is poor, the spray width is small, low efficiency of spray; Water is a c