Common sense of coating: cause analysis and solution of coating discoloration

Key tips: how to prevent paint discoloration, cause analysis and methods The color of the newly painted door is darker than that of the paint itself Is the paint discolored? In fact, the color change of paint mainly refers to the color change of varnish Varnish is transparent, colorless or very light yellow, after color change, it becomes brown or black Color paint also has the phenomenon of color change, which mainly shows that the color of light color paint becomes darker There may be several reasons for paint discoloration: (1) The ester solvent in varnish reacts with iron container and turns black when encountering water (2) Turpentine is easy to form red brown pigment in iron barrel (3) Gold and silver powder and varnish are prone to acid corrosion Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Paint Home News: how to prevent paint discoloration, cause analysis and methods the color of the newly painted door is deeper than the paint itself, is the paint discoloration? In fact, the color change of paint mainly refers to the color change of varnish Varnish is transparent, colorless or very light yellow, after color change, it becomes brown or black Color paint also has the phenomenon of color change, which mainly shows that the color of light color paint becomes darker The causes of paint discoloration may be as follows: (1) the ester solvent in varnish reacts with the iron container and turns black when encountering water; (2) turpentine oil is easy to generate red brown pigment in the iron bucket (3) Gold and silver powder and varnish are prone to acid corrosion, making the paint green, dark and lustrous (4) The storage period is too long and the precipitate changes color The methods of prevention and control are: (1) the shellac varnish which is easy to change color is filled in a non-metallic container (2) Before using varnish, add gold powder and silver powder Do not add varnish too early for storage (3) For the paint with precipitated discoloration, if it is not a quality problem, it can be used after full mixing Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,