How to prevent paint discoloration in decoration construction

The new brush's door color is deeper than the paint itself. Is the paint discolored? The discoloration of paint mainly refers to the discoloration of varnish. The varnish was originally a clear, colorless or very light yellow color, which turned brown or black after discoloration. The color paint also has the phenomenon of discoloration, which is mainly manifested in the darker color of the paint.

There are several possible causes of paint discoloration:
1. The reaction of the ester solvent in the varnish with the iron container becomes black after it encounters water.

2, turpentine is easy to generate red brown pigment in the iron barrel.

3, gold and silver powder and varnish prone to acid etching, so that the paint color becomes green, dark, lose luster.

4, the storage period is too long, precipitation discoloration.

Prevention:
1. For shellac varnish that is most susceptible to discoloration, store it in a non-metallic container.

2. Add gold powder and silver powder before using varnish. Do not store it in varnish prematurely.

3, the precipitation of discoloration of the paint, if not a quality problem, can also be used after sufficient stirring.

Keywords: Home decoration construction supervision

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