Redispersible latex powder manufacturers analyze the important role of redispersible latex powder in putty

Shandong chuangyao Biotechnology Co., Ltd. redispersible latex powder manufacturers have often asked about putty powder recently, such as putty powder is easy to pulverize, or the strength can not reach what. We all know that the putty powder needs to add hydroxypropyl methyl cellulose ether, many users do not add redispersible latex powder. Many people do not add rubber powder in order to save cost, but this is also the key to why ordinary putty is easy to be powdered and easy to have product quality problems!

Ordinary putty (such as 821 putty) is mainly made of white powder, a little starch glue and CMC (hydroxymethyl cellulose), and some are prepared with hydroxypropyl methyl cellulose and double fly powder. This kind of putty has no adhesion and water resistance.


   

Cellulose and water can absorb water and expand after dissolving. The water absorption rate of products from different manufacturers is different. Hydroxypropyl methyl cellulose plays a water retaining role in putty. The putty after drying has only a certain strength temporarily, but after a long time, it will slowly remove powder, which is closely related to the molecular structure of cellulose itself. Such putty, loose, high water absorption, easy to powder, no strength, no elasticity. If the topcoat is applied on it, the low PVC is easy to burst; the high PVC is easy to dehydrate, shrink and crack; because of its high water absorption, it will affect the film-forming and construction effect of the top coat.

Redispersible latex powder manufacturers remind you that if you want to improve the putty above problems, you can adjust the putty formula, properly add some redispersible latex powder, improve the late strength of putty, select a quality assurance of high-quality hydroxypropyl methyl cellulose HPMC, Shandong chuangyao Biotechnology Co., Ltd. hydroxypropyl methyl cellulose has excellent water retention rate of high-quality cellulose Make the putty raw materials fully hydrated so as to improve the quality of putty.

In the process of putty production, if the amount of redispersible latex powder is not enough, or the use of inferior putty special latex powder, what will be the impact on putty powder?

The most direct performance is that the putty layer is loose, the surface is powdered, the paint consumption is large, the leveling is poor, the surface is rough after film forming, and it is difficult to form a dense paint film. Such walls are prone to peeling, blistering, falling off, cracking and other phenomena. If you choose inferior putty powder, harmful gases such as formaldehyde produced on the wall surface are obvious to others.

To change the status quo, it is necessary to eliminate all inferior putty, leaving no residue, and then, purchase qualified putty and latex paint! In order to avoid unnecessary loss, customers can choose big brand products with quality assurance as far as possible. For more questions about putty powder, please pay attention to the redispersible latex powder manufacturer of Shandong chuangyao Biotechnology Co., Ltd.


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