Solid content
- Low solid content
The electrolysis process is vigorous, resulting in a thin paint film with many bubbles and a high likelihood of pinholes.
- High solid content
The coating layer is relatively rough and prone to developing an orange peel texture.
Solvent
As the solvent continuously evaporates and is filtered out, its content gradually decreases, affecting the quality of the paint film. In severe cases, the paint film may peel off before baking.
Voltage
With the application of voltage between the electrodes, the electric field effect is strengthened, causing the charged particles in the paint solution to migrate and accumulate at an accelerated rate. This electrophoretic movement leads to the thickening of the film layer.
PH value
When the pH value is too low, the paint film redissolves upon addition of more paint, resulting in a thinner film and severe corrosion of the equipment.
Electrical conductivity
- High electrical conductivity
The film thickness is prone to issues such as orange peel effect and rough surface texture.
- Low conductivity
Pinholes and pitting occurred.
Temperature
- High temperature
Increased solvent evaporation is detrimental to the stability and control of electrical conductivity.
- Low temperature
A higher voltage is necessary to achieve the desired outcome of electrophoresis.
Electrophoresis time
- Long electrophoresis time
The film is thicker and darker in color, resulting in reduced transparency.
- Short electrophoresis time
The membrane layer is incomplete.
