When the paint is discolored, the common phenomenon in home improvement construction, some people think it is the quality of the paint, there may be, but most are still caused by improper operation. Paint discoloration is generally deepened on the original basis. Let us first reveal the reasons for discoloration of paints: 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. Brand Shop: Dulux Master Coatings Prevention methods: 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 paint will be deposited for a long time there will be precipitation, it does not matter, before shaking it with a full stir, it can be. Links: "Pure Paper" and "PVC" Wallpapers Paint, paint, paint, wallpaper, home improvement 