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| Decoration paint tips: teach you how to prevent paint discoloration |
Discoloration of the paint mainly refers to the change of the varnish. The original varnish is colorless or extremely Jiandan yellow color will become dark brown or black. The color paint also has the color change phenomenon, mainly displays for the color light color paint color to be deep.
The reasons for the discoloration of paint can be as follows:
(1) ester solvent in the varnish and the reaction of the iron vessel after the water turns black.
(2) turpentine in steel can easily produce red brown pigment.
(3) the gold and silver powder and varnish are prone to acid corrosion, so that the paint color becomes green, dark, lose luster.
(4) the storage period is too long, precipitation discoloration.
The way to prevent and cure is:
(1) the most prone to discoloration of the shellac varnish, containing non metal containers.
(2) the use of varnish before adding gold and silver powders, don't join the varnish store.
(3) for the precipitation of paint, if not the quality of the problem, after full mixing can also be used. |
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