Importance of choosing putty layer for wall treatm

2022-07-22
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When you buy a new house happily and finish decorating, you want to live comfortably. I didn't expect that due to the temporary negligence in purchasing decorative materials, the wall would blister, wrinkle, peel, de powder, fall off, mildew, discoloration and musty smell soon after I lived in (after a rainy season). In the decoration of families, many owners, even construction teams, only pay attention to the choice of paint and ignore the importance of putty layer. In fact, insiders know that there has always been “ According to the saying of three parts of paint and seven parts of putty, the basic work in painting operation is to scrape putty, which plays the role of leveling and bonding between the blank wall and the coating film, and plays the effect of architectural beauty

for many years, the quality of putty has not been paid much attention in construction. As long as the construction is good, it will be firm at that time “ Qualified. It does not consider the erosion of objective factors such as future wall seepage, sun and rain, ultraviolet radiation and so on. If something goes wrong, it is generally considered that the paint and latex paint are bad, and no one always looks for the problem of putty layer. Putty is not water-resistant. In the past decoration construction, the construction unit or the construction unit did not pay much attention to the choice of putty, but only cared about what brand and grade of paint to use, It is always considered that putty is an auxiliary material, which is irrelevant, especially when the construction is completed and accepted, there is no putty at all, only the coating effect is required, and the internal putty quality of the coating and whether the putty has strength are ignored; Whether the putty is water resistant; And other relevant performance indicators. When the paint peels and falls off, the project has already been handed over, followed by year after year of repair, and even some putty is still peeling off after touching, then the best paint will also peel and fall off. Because the putty layer itself has been powdered and fallen off

nowadays, 107 glue + talc powder + cellulose derivative chemical paste is mostly used in engineering, mixed into glue putty and applied to the wall. There are common phenomena of peeling, discoloration, cracking and falling off after being wet and drenched on the wall, which has become a common disease affecting the engineering quality. Cause the whole wall coating to fall off: the skin does not exist, and the hair will not attach. If the putty falls off, what about the coating? Especially the exterior wall engineering is more important. In order to achieve the desired coating effect, 100% water-resistant putty powder for interior and exterior walls is required. The technical performance index requirements of putty powder: the bonding strength in the standard state is> 0.7MPa, and the bonding strength after immersion in water for 48 hours must be several times greater than that in the standard state. Only in this way can the requirements of the bad weather of the outer wall be guaranteed, can it withstand the sun, rain and ultraviolet radiation, be enduring, and really play the role of architectural beauty

performance comparison between dry powder putty and ordinary putty

dry powder putty is the best alternative to ordinary putty, and its key raw materials are imported materials. There are obvious advantages and disadvantages between dry powder putty and ordinary putty

characteristics of dry powder putty:

1. Strong adhesion, high bonding strength, certain toughness, good air permeability, no pulverization after moisture, and strong water resistance

2. There will be no cracking, peeling, falling off and other phenomena in a long time

3. The wall feels fine, soft and has good texture

4. After the wall is polluted, it can be scrubbed directly. When painting the wall again, there is no need to uproot the wall

5. All materials used are environment-friendly, and do not contain toxic substances such as benzene, xylene, formaldehyde, etc

common putty features:

1. Poor adhesion, low bonding strength, no toughness, and pulverization will occur soon after moisture

2. Cracking, peeling, falling off and other phenomena occur in a short time

3. When painting the wall again, the original putty needs to be removed, which is laborious and polluting the environment

4. The surface is not delicate enough and the texture is poor

5. The materials used generally contain toxic substances

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