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Causes and prevention methods of morbidity caused by poor paint quality

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  • Time of issue:2014-09-15 14:50
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Summary:Newly-opened barrels of paint should generally be adjusted with diluent before use. When the hiding power is poor, you can open another bucket of paint and use them together

Causes and prevention methods of morbidity caused by poor paint quality

(Summary description)Newly-opened barrels of paint should generally be adjusted with diluent before use. When the hiding power is poor, you can open another bucket of paint and use them together

Information

Sick Causes

Prevention methods

⑴The paint is too thick

The paint liquid is too thick, it is easy to wrinkle when used, and the hiding power is poor after dilution

Newly-opened barrels of paint should generally be adjusted with diluent before use. When the hiding power is poor, you can open another bucket of paint and use them together

⑵ Hanging

Sometimes the paint in the newly opened barrel is too thin, the paint pigment is too small, and the paint sags if it is thickened

It can be mixed with paints of the same type and color, and used after stirring evenly. The coating should not be too thick

⑶ not dry, stick back

Improper use of paint, improper heat refining, improper resin ratio or insufficient drier, etc.

Poor paint should be replaced. Drying is slow due to insufficient amount of drier, which can be adjusted by adding drier.

⑷ Particle protrusions

The paint production control is not strict, the pigment grinding is not enough or the container is not clean

When using, the paint liquid should be stirred evenly and filtered through a fine sieve

⑸ “orange peel” and wrinkles

Improper polymerization of oil in the coating, improper solvent matching, excessive coating viscosity, etc.

The paint quality is poor and should be replaced. Do a coating test before construction to adjust the viscosity

⑹ Loss of light

The solvent quality in the paint is poor, the film-forming material is too small, and the thinner is too much, which causes the paint film surface to dry too quickly and lose its gloss

It can be mixed with the same kind of paint to adjust to the appropriate viscosity, or add part of the varnish to improve the gloss

⑺ turns white

The weather is humid, and the nitro paint is easy to whiten, or the thinner ratio is improper

Preheat the workpiece at low temperature first, or add 10%--20% moisture-proof agent

⑻ No bottom cover

Insufficient pigment content in paint, too much diluent in barrel

Open an extra bucket of paint of the same variety and color, match each other, adjust the viscosity, and fine-tune the construction

⑼ Color mismatch

Paint color does not conform to standard. Sometimes the color is very different, even if it is fully stirred, it does not solve the problem

Can be redeployed with similar paints

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