Putty powder is a kind of building decoration materials, the main ingredients are talcum powder and glue. Just purchased the blank house surface of a layer of white is putty, usually putty whiteness in more than 90 fineness in more than 330.
Putty is used to wall repair a substrate, for the next step in the decoration (paint wallpaper) to lay a good foundation. Putty is divided into two kinds of internal and external walls, external wall putty to resist the wind and sun, so the glue is large, high strength, environmental protection index is slightly lower. Interior wall putty comprehensive index is better, healthy and environmentally friendly, so the interior wall is not used outside, the exterior wall is not used inside. Usually putty is gypsum or cement-based, so the surface is rough easier to bond firmly. But in the construction of the grass-roots level should be painted a layer of interfacial agent to seal the grass-roots level at the same time to improve the adhesion of the wall, so that the putty can be better bonded to the substrate.
Firstly, the bonding strength of putty is not enough to cause powder removal, manufacturers are bent on reducing costs, the bonding strength of the glue powder is poor, the amount of additive is small, especially for the interior wall putty, the size of the bonding strength, the powder removal is not powder removal and the quality of the glue powder and glue and the amount of additive has a lot to do with the quality and the amount of additive.
Secondly, the design formula is unreasonable, the problem of material selection and the structure of the putty formula is very important. For example, hydroxypropyl methyl cellulose (HPMC) to do not waterproof putty for interior walls, HPMC, although very expensive, but on the double-fly powder, talcum powder, wollastonite powder and other fillers do not work, if you only use HPMC will cause powder, and the price of low CMC, CMS to the contrary does not come off, but CMC, CMS can not be done as a waterproof putty, and can not be done for the exterior wall putty, because the CMC and CMS met CMC and CMS can not be used as waterproof putty or exterior putty, because CMC and CMS will react with grey calcium powder and white cement, which will cause powder removal, and polyacrylamide can be added into grey calcium powder and white cement to make waterproof coating, which will also cause chemical reaction and powder removal.
In addition, the error of production process causes putty powder, if the mixer does not have the function of cleaning, more residue, CMC in ordinary putty will react with grey calcium powder in waterproof putty, and CMC, CMS in the interior putty and exterior putty will react with white cement and cause powder removal. Some companies special equipment set up a cleaning port, can be cleaned up the residue in the machine, not only to ensure the quality of putty, but also can be used for multiple purposes, buy a machine to produce a variety of putty.
Facing the problem of putty powder off powder, SIDLEYCHEM actively solves it and reduces the risk of off powder as much as possible.Since the successful establishment of SIDLEYCHEM brand in 2012, it has always been adhering to the concept of innovation and excellence, and not only constructed a matrix of global famous brands including SIDLEYCEL and SIDLEYRDP, but also in many industry fields, such as cellulose ether series, mortar admixtures, coatings, etc., showing strong competitiveness and influence. SIDLEYCHEM has become a leader in the industry by virtue of its well-equipped professional laboratories, providing scientific and effective solutions to this problem.