Paint knowledge: how to solve the problem of pinhole in paint

Core tip: the following problems will occur in the paint construction, such as pinpoint pinhole phenomenon on the surface of the paint film What are the causes of pinhole phenomenon and what are the countermeasures? The following paint construction pinhole solutions, I hope to help you 1 The problem describes a kind of pinpoint pinhole phenomenon on the surface of paint film The pinprick hole is like a pinprick hole with an aperture of about 100 microns 2 Analysis of the causes of pinhole problems (1) poor surface treatment, many wood hairs, wood thorns, difficult filling (2) If the bottom layer is not completely dry, the construction will be carried out for the second time (3) The prepared paint does not stand for a period of time, and the paint viscosity 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: paint construction will appear the following problems, such as the surface of the film pinpoint pinhole phenomenon What are the causes of pinhole phenomenon and what are the countermeasures? The following paint construction pinhole solutions, I hope to help you 1 The problem describes the pinpoint pinhole phenomenon with deep depression on the surface of the paint film The pinprick hole is like a pinprick hole with an aperture of about 100 microns 2 Cause analysis of pinhole problems (1) poor surface treatment of plate, many wood hairs, wood thorns, and difficult filling (2) if the bottom layer is not completely dry, the second construction shall be carried out (3) the prepared paint does not stand for a period of time, the paint viscosity is high, and bubbles are not eliminated (4) one time construction is too thick (5) incorrect matching of curing agent and diluent (6) too much curing agent is added (7) high ambient temperature and humidity (8) high moisture content of wood 3 Solutions to pinhole problems (1) the blank of the plate shall be polished and leveled, and then sealed with the bottom Debao (2) in case of multiple construction, the interval of recoating shall be sufficient, and the second construction shall be conducted after the lower layer is fully dry (3) the prepared paint shall be allowed to stand for a period of time, and the construction shall be carried out after the bubbles are completely eliminated (4) the viscosity of the paint shall be suitable and not too thick (5) one time construction shall not be too thick, and "thin brush for many times" shall be achieved Generally, the thickness of single layer shall not exceed 20 μ M (6) use the specified curing agent and diluent, and construct according to the specified proportion (7) do not construct when the temperature and humidity are high (8) wood shall be dried to a certain moisture content before construction, generally 10-12% Home of coatings focuses on coatings, paint coatings, coating technology, news and information of fire retardant coatings, coatings, coating technology, decoration knowledge and decoration renderings of fire retardant coatings,