The prepainted aluminum coil is got through the pretreatment, paint coating and baking of the plain aluminum coil. Haomei Aluminum is a profession painted aluminium coil supplier. It can offer you the color coated coil of 0.08-1.5 mm, covering PVDF and PE aluminum coil
As for the colors, we can process the prepainted aluminum coil in various colors according to the samples provided by users. We can also offer free samples of various colors according to the RAL and PANTONE color card codes.
Through painting, the aluminum coil get beautiful appearance and better performance. The color painted aluminum coil can protect objects fromultraviolet rays, wind, rain, frost, snow and freezing,corrosive gases and microorganisms,etc.
Its production process is more complicated and strict, especially in coating. To ensure its coating effect, it is necessary to ensure that the following aspects meet certain requirements:
1. Raw material
Paint and plain aluminum coil are the primary factors that can affect the coating quality during the painting process. Due to the color difference between the batches of the paint, the insufficient paint fineness, improper match of the paint and the solvent,etc., all these will directly affect the coating effect. The uneven thickness of the aluminum coil will also affect the aluminum coil quality and its applications.
2. Equipment
To the coating production line, the coating equipment is required to be intact, the coating equipment must run smoothly, and there must be no horizontal and vertical jitter, and the coating roller must be finely ground.
The lateral runout of all rollers of the coating machine must be controlled within the allowable range, otherwise it will seriously affect the coating surface quality.
3. Coating process
The coating process is closely related to the coating quality. The relative linear speed ratio of the coating roller, paint roller, metering roller and substrate should be controlled within a certain range.
It is necessary to set a certain viscosity range for the coating according to different systems and the film thickness of the aluminum siding trim coil to ensure the smooth coating progress and coating quality.