Paint knowledge | water resistant putty concept

Core tip: in JG / t298-2010, in addition to water-resistant (n-type) products, there are general (Y-type) products The main difference between them is the strength Water resistant products are required to have a bond strength of more than 0.50mpa in standard state, while general products are only required to have a bond strength of more than 0.30mpa In addition, water resistant products are required to have no peeling, cracking or bulging after being immersed in water for 48h after scraping and coating, and can achieve a bond strength of more than 0.30mpa 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 Home of coatings news: in the standard of putty for building interior (JG / t298-2010), in addition to "water-resistant (type n)" products, there are "general (type Y)" products, the most important difference between the two is the degree of firmness Water resistant products are required to have a bonding strength of more than 0.50mpa in standard state, while general products are only more than 0.30mpa In addition, water resistant products are required to have no peeling, cracking or bulging after being immersed in water for 48 hours after scraping and coating, and to have a bonding strength of more than 0.30mpa, while general products will fall off after being immersed in water, with a strength of zero The strength after immersion checked in the standard is a kind of more extreme destructive test In real life, of course, no one will soak the wall with putty in the water, but the problem pointed out by this test is very important, that is, the service life of the product Although the house won't be soaked in water, there will always be water vapor in the air The wall is exposed to the air, constantly eroded by water vapor Good water resistance means long service life, and poor water resistance means short service life Generally speaking, the service life of water-resistant putty should be more than 15 years after it is normally put on the wall, while the service life of general putty can only reach about 5 years when the outer layer is protected by emulsion 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,