10 common problems and solutions in the construction of anti-corrosion paint | anti corrosion paint in china

29 / 12 / 2021

10 common problems and solutions in the construction of anti-corrosion paint | anti corrosion paint in china
1. Poor curing
The anti-corrosion paint has been stored for a long time or the initiator has failed to add too much solvent or the solvent has a high boiling point. Replace the UV lamp, or slow down the speed of the car appropriately to make the equipment run under the rated conditions. Anticorrosive paint should be used within the warranty period, if it exceeds the warranty period, it should be handed over to the manufacturer for disposal. Solvents should not be added to the anticorrosive paint. If necessary, it should be carried out under the guidance of the manufacturer's technicians.

2. Anticorrosive paint has gel spots
Inadequate UV protection in production environments due to improper storage. The anticorrosive paint should be kept away from light, and it is strictly forbidden to expose it to ultraviolet light or sunlight.

3. Coated anti-corrosion paint surface
Roll marks (orange peel)
The production environment temperature is too low or the coating roller gap of the equipment with large anti-corrosion paint viscosity is too large, and the appropriate improvement process should be carried out to raise the temperature or contact the manufacturer to switch to the anti-corrosion paint of appropriate viscosity. Adjust the roller distance to make the anti-corrosion paint reach a proper distance.

4. There are bubbles on the surface of the anticorrosive paint
The system is unstable and leaks. If too much low-boiling solvent is added, the system should be checked before production to ensure the airtightness of the feeding system. Solvents should not be added to the anticorrosive paint. If necessary, it should be carried out under the guidance of the manufacturer's technicians.

5. There is dust on the surface of the anti-corrosion paint
Dust removal of production equipment is not good. The anticorrosive paint is contaminated. During production, the feeding system, coating roller and drying equipment should be kept clean. Mixing of anticorrosive paint rooms is strictly prohibited.

6. Stripping of paint film surface
The surface of the substrate is contaminated. The selected anti-corrosion paint is inappropriate. The substrate for production shall be clean and dry, and oil and dust shall be removed when necessary. UV curing anticorrosive paint has strong specificity, and it can be selected and used correctly according to the needs of production.

7. Poor paint film adhesion
Insufficient UV light intensity leads to insufficient curing. The surface of the substrate is contaminated. Improper choice of thinner. The selection of anti-corrosion paint is incorrect. Perform illuminance detection on the UV lamp. If it is significantly lower than the rated value or severely unstable, the lamp should be replaced in time. The substrate for production shall be clean and dry, and oil and dust shall be removed when necessary. Solvents should not be added to the anticorrosive paint. If necessary, it should be carried out under the guidance of the manufacturer's technicians. UV curing anticorrosive paint has strong specificity, and it can be selected and used correctly according to the needs of production.

8. The gloss of the paint film is biased
There is a deviation between the intensity of the ultraviolet light and the speed of the vehicle. Inappropriate choice of thinner. Adjust the vehicle speed and lamps to allow the equipment to run under rated conditions to ensure the quality of the anticorrosive paint. Solvents should not be added to the anticorrosive paint. If necessary, it should be carried out under the guidance of the manufacturer's technicians.

9. The surface of the anti-corrosion paint is sticky or has
Oily substance
Insufficient UV light intensity leads to insufficient curing. Improper choice of thinner. Perform illuminance detection on the UV lamp. If it is significantly lower than the rated value or severely unstable, the lamp should be replaced in time. Solvents should not be added to the anticorrosive paint. If necessary, it should be carried out under the guidance of the manufacturer's technicians.

10. Poor adhesion or appearance of colored paint
Wrinkle phenomenon
The anticorrosive paint has been stored for a long time or the initiator has failed. The amount of solvent added is too large or the boiling point of the solvent is high. Replace the UV lamp or slow down the vehicle speed appropriately to make the equipment run under the rated conditions. Anticorrosive paint should be used within the warranty period, if it exceeds the warranty period, it should be handed over to the manufacturer for disposal. Solvents should not be added to the anticorrosive paint. If necessary, it should be carried out under the guidance of the manufacturer's technicians.
anti corrosion paint in china