Advantages and coating precautions of water-based anti fingerprint oil
Advantages of water-based anti-fingerprint oil:
1, environmental protection is more safe: water-based anti-fingerprint oil diluted with water, non-toxic and tasteless, non-combustible and non-explosive, and oily anti-fingerprint oil is used in the water, flammable and explosive.
2, higher hardness: water-based anti-fingerprint stone hardness and aging resistance, salt spray resistance is higher than oily anti-fingerprint oil.
3, through the European and American food-grade functional testing: water-based anti-fingerprint oil is selected from pure environmentally friendly raw materials, can pass ROHS, FDA and other food-grade testing and certification, while oily anti-fingerprint oil can not be shipped through Europe and the United States.
So, what problems do we need to pay attention to in the process of water-based anti-fingerprint oil coating?
1. Spraying tools: If you are using electrostatic spraying, you need to replace it with electrostatic coating equipment for waterborne coatings. Manufacturers selling spray guns can be replaced, and the cost of replacement is very low. If you are using an ordinary craft spray gun, you don't need any equipment modifications. It is recommended that the diameter of the spray gun be: a spray gun of 0.8~1.0mm. The spraying tool advocates the use of a water-based electrostatic spray gun, which has better atomization function, less oil consumption and lower cost.
2, oil thinner: water-based anti-fingerprint oil can only participate in pure water or tap water, can not participate in paint thinner (day water, banana water), or there will be paint agglomeration into floccules. The spray gun used must be clean and must not contain thinner materials.
3, with paint: open the paint bucket cover, first mix well in the bucket, take out the amount to be used, and then use the purified water to dilute the coating to the coating viscosity, filtered through 200 ~ 300 mesh silk, spare. Generally speaking, the water is 5-20% of the coating amount, which is adjusted according to the requirements of the thickness of the coating film. If the film is thin, it can be dilute, so that it does not sag as well. If the film thickness is thick, the water can be added less. I can't afford a big orange peel.
4. Spraying method: According to the actual situation, roller coating or spraying method can be selected. The flat plate construction is better by roller coating, the efficiency is high, and the paint film is clean. Generally, the spraying method is used for the construction of the workpiece. The thickness of the coating varies from 5 to 20μ depending on the customer's requirements. When painting, the environment is required to be boring and clean, and the paint mist can be removed in time to prevent dust and paint from flying. When adjusting the spray gun, pay attention to the amount of paint to be small. Because the water-based paint is larger than the solvent-based paint in the same caliber, it is easy to sag, so the paint amount of the gun must be adjusted to be small, so that it can be thinly sprayed.
1. The substrate is required to be non-greasy, dry and dry, free of dust and impurities, and no residual pressure sensitive adhesive (if there is glue, it can be cleaned with the corresponding cleaning agent).
2, the whole process of painting does not avoid water, avoid oil. High temperature and high humidity, cold and humid environment, all of them are painted with helium, and the appearance of the paint film will be affected.
3, color (bronze, rose gold, bean paste gold, etc.) transparent paint spraying, the dry film is darker than the wet film, spray the color slightly shallower, the film will be deeper after the film is dry.
4. Unpainted paint after opening the barrel should be sealed and stored. The shelf life is greater than 6 months, and it is necessary to decide after expiration.