Common knowledge of coating: Causes and solutions to cracking of exterior wall coating

Core tips: Cracking of exterior wall coating: The regular cracks on the surface of the paint film are similar to those on the tortoise shell The cracks are very thin and shallow, which only occur in the surface layer, affecting the appearance If further development, some of them may cause water seepage of the external wall, affecting the normal use Possible causes: 1 The coating with strong flexibility (such as latex primer) is coated with the coating with high hardness (such as polyester paint) 2 The primer is not dry when applying the top coat 3 The exterior wall is painted with oil-based paint, which is naturally aged due to the fluctuation of temperature 4 The continuous expansion of the exterior wall coating results in the loss of elasticity of the coating solution Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Paint Home News: external wall paint cracking: the surface of the paint film appears regular cracks similar to tortoise shell The cracks are very thin and shallow, which only occur in the surface layer, affecting the appearance If further development, some of them may cause water seepage of the external wall, affecting the normal use Possible reasons: 1 The coating with strong flexibility (such as latex primer) is coated with a coating with high hardness (such as polyester paint) 2 The primer is not dry when applying the top coat 3 The exterior wall is painted with oil-based paint, which is naturally aged due to the fluctuation of temperature 4 The continuous expansion of the exterior wall coating results in the loss of elasticity of the coating Solution: thoroughly remove the old paint film and regrind the surface Prime the surface with high-quality emulsion paint or oil primer, and then apply high-quality exterior wall paint 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,