Putty powder is a kind of building decoration materials, the main components are talcum powder and glue. Just bought a layer of white on the surface of the blank room is putty, usually the whiteness of putty is more than 90, fineness is more than 330.

许多腻子粉使用者不得不承认，腻子胶粉脱粉是一个很严重的问题，它会引起乳胶漆的脱落，以及腻子层的起鼓，裂缝，进而引起乳胶漆饰面发生裂缝。

Many users of putty powder have to admit that it is a very serious problem for putty powder to come off. It will cause the peeling off of emulsion paint, the bulging and cracking of putty layer, and then the cracking of emulsion paint finish.

腻子粉脱粉掉粉、掉白是目前更常见的腻子施工后问题，要了解腻子粉脱粉的原因，首先要了解腻子粉的基本原材料组分与固化原理，然后结合腻子施工时的墙面干燥程度、吸水率，温度、天气干燥程度等。今天腻子粉厂家小编谈一谈腻子粉掉粉的主要原因，一起来看看吧!

It is the most common problem after the putty construction that the putty powder is removed from the powder and white. To understand the reasons of the putty powder removal, we should first understand the basic raw material components and curing principle of the putty powder, and then combine the dryness of the wall surface, water absorption, temperature and weather dryness during the putty construction. Today, putty powder manufacturers small series to talk about the main reasons for putty powder off powder, let's have a look!

原因一

Reason one

腻子的粘结强度不够造成脱粉，生产厂家一味的降低成本，胶粉的粘结强度差，添加量较小，特别是内墙腻子，粘结强度的大小，脱粉不脱粉和胶粉以及胶水的质量和添加量有很大关系。

The adhesive strength of putty is not enough, which leads to powder removal. The manufacturer blindly reduces the cost. The adhesive strength of rubber powder is poor, and the amount of addition is small. Especially for the interior wall putty, the adhesive strength, powder removal without powder removal are closely related to the quality and amount of rubber powder and glue.

原因二

The second reason

设计配方不合理，选材的问题和结构的问题，在腻子配方中很重要。比如羟丙基甲基纤维素(HPMC)做内墙不防水的腻子，HPMC虽然很贵，但对双飞粉，滑石粉，硅灰石粉等填充料不起作用，如果仅使用HPMC就会引起脱粉，而价格低的CMC、CMS反到不脱粉，但是CMC、CMS不能做防水腻子，也不能做外墙腻子，因为CMC和CMS遇到灰钙粉、白水泥起反应，这都会引起脱粉，也有把聚丙烯酰胺加入灰钙粉、白水泥做为防水涂料，也会起化学反应引起脱粉。

Unreasonable design formula, material selection and structure are very important in putty formula. For example, hydroxypropyl methylcellulose (HPMC) is not waterproof putty for interior wall. Although HPMC is very expensive, it doesn't work for filling materials such as Shuangfei powder, talcum powder and wollastonite powder. If HPMC is used only, it will cause powder removal, while CMC and CMS with low price can't do it, but CMC and CMS can't do waterproof putty and exterior wall putty, because CMC and CMS meet lime powder and white cement Reaction, which will cause depigmentation, but also adding polyacrylamide to lime calcium powder, white cement as waterproof coating, will also have a chemical reaction to cause depigmentation.

原因三

The third reason

混合搅拌不均匀，是造成内外墙腻子脱粉的主要原因，全国有的生产厂家生产腻子粉设备简单，五花八门，不是专用搅拌设备，搅拌不均匀，引起腻子脱粉。

Uneven mixing and mixing is the main reason for the internal and external wall putty powder removal. Some manufacturers in China produce putty powder with simple and varied equipment, which is not a special mixing equipment. Uneven mixing causes putty powder removal.

原因四

Reason four

生产工艺的错误造成腻子脱粉，如果混合搅拌机没有清扫的功能，残留较多，普通腻子中的CMC就会和防水腻子中的灰钙粉起反应，内墙腻子中的CMC、CMS和外墙腻子的白水泥起反应而造成脱粉。有的公司专用设备设置了清扫口，可以把机器中的残留物清扫干净，不仅保证腻子的质量，还可以一机多用，买一台设备生产多种腻子。

If the mixing mixer has no cleaning function and there are many residues, the CMC in the ordinary putty will react with the lime powder in the waterproof putty, and the CMC, CMS in the interior wall putty and the white cement in the exterior wall putty will react to cause the powder removal. Some companies set up special equipment cleaning mouth, can clean up the residues in the machine, not only to ensure the quality of putty, but also can be a multi-purpose machine, buy a device to produce a variety of putty.

原因五

Five reasons

填充料的质量的不同也容易造成脱粉，内外墙腻子大量的使用填充料，但各地重钙粉、滑石粉里面Ca2CO3的含量不同，酸碱度不同也会造成腻子的脱粉，比如重庆和成都的内墙腻子粉用同样的胶粉，但滑石粉、重钙粉不同，在重庆不脱粉，在成都就脱粉，在河南、东北不脱粉，而在一些地区就脱粉。

Different quality of fillers can easily lead to depigmentation. A large number of fillers are used for internal and external wall putty. However, the content of ca2co3 in heavy calcium powder and talc powder is different in different places, and the pH value is different. For example, the same rubber powder is used for internal wall putty in Chongqing and Chengdu, but talc powder and heavy calcium powder are different. In Chongqing, the powder is not depigmented, but in Chengdu, and in Henan and East China There is no flour removal in the north, but in some areas.

原因六

Reason 6

夏季外墙腻子的保水不够，特别是在大楼高层门口、窗口等高温通风的地方，灰钙粉和水泥的初凝时间不够就已失去水份，又没有养护好，也会严重脱粉。

In summer, the water retention of external wall putty is not enough, especially in high-temperature and ventilated places such as high-rise building doors and windows. If the initial setting time of lime, calcium powder and cement is not enough, the water will be lost, and if the maintenance is not good, the powder will be seriously removed.