Precautions for
powder coating storage
1. Construction requirements:
Electrostatic spraying
Surface treatment of the object to be coated → electrostatic powder coating → melt leveling or cross-linking curing → cooling → product (1) In order to give full play to the characteristics of powder coating and prolong the service life of the coating film, the surface of the object to be coated is first strictly treated. preprocessing.
(2) When spraying, the object to be coated must be completely grounded to increase the spraying efficiency of
powder coating.
(3) For the coated objects with large surface defects, conductive putty should be applied to ensure the smoothness and smoothness of the coating film.
(4) After spraying, the objects need to be heated and cured. The curing conditions are subject to the technical specifications of the powder products, but the curing temperature and time must be fully guaranteed to avoid quality accidents caused by insufficient curing.
(5) Check immediately after dusting.
(6) The recovered powder must be screened to remove impurities, and then mixed with the new powder in a certain proportion.
(7) The powder supply barrel, powder spraying room and recovery system should avoid the pollution of other powders of different colors, so it must be cleaned every time the color is changed.
2. Storage precautions:
1. Keep away from fire sources and avoid direct sunlight. It should be placed in a well-ventilated place with a temperature below 35°C.
2. Avoid storing in places susceptible to contamination by water, organic solvents, oils and other materials.
3. The
powder coating should not be exposed to the air at will after use. It should be covered or tightly closed at any time to avoid the mixing of sundries.
4. Avoid long-term contact with the skin. The powder attached to the skin should be washed with soap and water, and no solvent should be used.
5. The equipment used in the painting operation should be well grounded to eliminate static electricity.
6. Avoid the phenomenon of unprovoked discharge of the coating machine.
7. In the dusting room, the concentration of floating dust should be controlled below the safe concentration as much as possible to avoid the danger of dust fire and explosion.
