Common problems and solutions of ABS and HIPS plastic coating

a. There is a release agent on the surface of the product

b. Compressed air contains water, oil, etc.

c. Oil stains on hands of transporters or operators

a. Improve mold soldiers, do not use release agent

b. Release oil and water from the compressor regularly, and install a gas-water separation device

c. The operator wears jersey gloves

a. The solvent bathing force in the paint is too strong

b. Uneven density of plastic products

c. The plastic resin case does not fit well

a. Adjust the diluent composition such as adding some butanol

b. Improve mold

c. Choose resins from different origins and models

a. The viscosity of the coating is high during construction

b. The drying speed is too fast

c. The dilute diluent evaporates too quickly

a. Adjust construction viscosity

b . The temperature gradually rises on the drying line

c. Add some high boiling point solvent to the diluent

a. Excessive humidity at the construction site

b. The solvent evaporates too fast

c. Poor solvency of high boiling point solvents in solvents

a. Reduce the humidity of the construction site or heat the workpiece

b. Add some solvents with slow volatilization speed and strong dissolving ability

c. Replacement of high boiling point solvents

a. Improper blending of resin in paint

b. Heating and drying speed is too fast

c. Improper plastic molding process and poor coating wetting

d. Excessive humidity at the construction site

a. Reselect paint

b. Gradually heat from low temperature to high temperature

c. Improve molding process

d. Adjust the humidity of the construction site

a. Insufficient drying

b. The paint film is too thick

c. Migration of plasticizers

d. High boiling point solvents cannot be released

a. Improve drying efficiency

b. Choose a small Spray Gun for coating, and the coating film is controlled at 15~25 microns

c. Choose a coating with higher hardness

d. Adjust the solvent composition