What is putty?

Classification and difference of putty

1.

Answer: (1) Ordinary putty is mainly made of white powder, added a little starch ether and CMC (hydroxymethyl cellulose).

(2) Water-resistant putty paste is mainly composed of polymer organic matter, gray calcium powder, ultra-fine filler and water-retaining agent.

(3) Water-resistant putty powder is mainly composed of calcium carbonate, ash calcium powder, cement, Nok redispersible latex powder, water retention agent, etc.

(4) Emulsion type putty is mainly composed of polymer emulsion, ultra-fine filler and water retention agent.

2.

Answer: (1) According to the state: paste putty, powder putty, glue with filler or cement

(2) According to water resistance: water-resistant putty, non-water-resistant putty (such as 821 putty)

(3) According to the occasion of use: internal wall putty, external wall putty

(4) According to function: water-resistant putty, elastic putty, high-elastic waterproof putty

3.

Answer: Water-resistant putty is the best alternative to ordinary putty

(1) Strong adhesion, high bonding strength, certain toughness and good air permeability

(2) Chalking will not occur after being damp, and it has strong water resistance

(3) When using water-resistant putty, the wall will not crack, peel, or fall off

(4) The wall surface using water-resistant putty has a delicate touch, a soft look and a good texture

(5) After the wall with water-resistant putty is polluted, it can be directly scrubbed or directly painted with interior wall paint
.
And can improve the performance and service life of the coating
.

(6) When painting the inner wall again, there is no need to remove the wall, and directly paint the inner wall paint
.

(7) Water-resistant putty is an environmentally friendly material, which does not cause any pollution to indoor air
.

4.
What are the disadvantages of ordinary putty?

Answer: (1) The adhesion is poor and the bonding strength is low.
In order to overcome this shortcoming, some high-quality home improvement companies apply the interface agent on the substrate
.
Increase costs and increase working hours
.

(2) There is no toughness
.

(3) Chalking will appear soon after encountering moisture
.

(4) Phenomenon such as cracking, peeling, falling off in a short time
.
Especially for the treatment on the inner wall moisturizing board, it is difficult to prevent the above phenomenon even if it is fully enclosed with cloth
.
After the construction is completed, multiple maintenance will be brought, which will cause inconvenience to users
.

(5) When painting the wall again, the original 821 putty needs to be removed, which is laborious and pollutes the environment
.

(6) The surface is not delicate enough and the texture is poor
.

5.
In comparison, what are the advantages of putty powder?

Answer: Putty powder is a mixture of polymer powder and powdered glue.
After mixing with water in a certain proportion, it can be used to flatten the wall
.
Since formaldehyde can only exist in gaseous or liquid form, putty powder contains the least or no formaldehyde in comparison, which is more environmentally friendly
.

6.
Which document restricts the use of ordinary putty represented by 821?

Answer: It is clearly stipulated in the "Jingjian Building Materials (2007) No.
837 Document-"Notice on Issuing the Fifth Batch of Beijing Municipality's Prohibited and Restricted Building Materials and Construction Technology Catalogues" jointly issued by the Beijing Municipal Construction Commission and the Planning Commission , Restrict the use of "non-water-resistant gypsum wall-scraping putty".
The reason for the restriction is "poor water resistance and low strength".
The restricted range of use is residential projects, and the alternative products are various water-resistant putties
.

7.
Can exterior wall putty be used indoors? Will there be environmental problems?

Answer: The exterior wall putty can be used indoors, but it is best to use the interior wall putty indoors.
The exterior wall putty is generally not as environmentally friendly as the interior wall putty
.

8.
How is the scraping putty stipulated in the quota?

Answer: There is no corresponding quota for scraping putty.
It is a process and is generally included in the painting project
.

9.
When and how to use putty during the decoration process?

Answer: In front of the top of the painted wall, put the putty first, then apply the primer, and then paint the top
.

10.
What happens if there is insufficient glue in the putty?

Answer: Insufficient putty glue, the most direct manifestation is that the putty layer is loose, the surface is chalked, the paint consumption is large when applying the top coat, the leveling is poor, the surface is rough after the film is formed, and it is difficult to form a dense paint film
.
Soon after the user moves to the new house, the paint film peeling, blistering, shedding, cracking, etc.
will appear on the wall, destroying the beautiful home built by the user with all his efforts
.
If the user wants to change the status quo, he must remove all the inferior putty without leaving any residue, and then buy qualified putty and latex paint, and repeat all the construction procedures before moving into the new house.
In this way, the user will not only suffer huge economic losses.
, Will also face the embarrassing situation of how to deal with the furniture and other decorative materials that have been placed indoors
.

11.
Why is ordinary putty easy to powder?

Answer: (1) Ordinary putty (such as 821 putty) is mainly made of white powder, added a little starch glue and CMC (hydroxymethyl cellulose).
There are also those made of methyl cellulose and double fly powder.
This type of putty is not attached.
Hard work, intolerant of water
.

(2) Cellulose and water can absorb water and swell after dissolving.
Different manufacturers' products have different water absorption rates.
Cellulose plays a role in retaining water in the putty.
The dried putty only has a certain strength temporarily, but it will slow down after a long time.
Slow depulverization is closely related to the molecular structure of cellulose itself
.

(3) Such putty is loose, high water absorption, easy to pulverize, no strength, no elasticity
.
If the topcoat is applied on it, low PVC is easy to burst and foam; high PVC is easy to synergize and crack; due to its high water absorption, it will affect the film formation and construction effect of the topcoat
.

12.
What are the effects of using corrosive chemical raw materials in putty?

Answer: Many putties, especially putty powder, often contain corrosive chemical raw materials, which can cause skin swelling and ulceration after physical contact.
During the process of construction on the wall, various decorative materials, especially wooden lines that are in contact with the putty , Wooden doors and windows are obviously discolored, soft or fall off.
After the latex paint is applied, the paint film will turn yellow, lose color or fall off.
After moving into the furniture, the service life of the furniture will also be greatly shortened
.

13.
Why does the putty lose powder?

Answer: The main reason is that the base wall is too dry, the wind speed is too high, and the water absorption is too strong.
After the putty is applied to the wall, the putty cannot be hydrated and solidified normally, which causes the surface to chalk
.
This requires that the roller brush is moistened with water first, and then putty is applied
.

14.
Under what circumstances is the water-resistant putty prone to cracking?

Answer: (1) Due to the thickness of a single drape, the putty will form micro-cracks during the curing period;

(2) Construction under high temperature environment
.

(3) Construction in a dry and windy environment
.

(4) Construction under low temperature environment
.

15.
What are the factors that cause foaming of water-resistant putty?

Answer: (1) The curing period of the base layer cement has not passed, and the alkalinity is too high, which causes the putty layer to be too alkaline during the curing period, leaving traces of blistering after drying
.

(2) The base wall is too dry, and the scraping speed is too fast, which causes the putty to laminate with air to produce an air drum, which can be solved by repeating the scraping several times
.

16.
What causes the peeling of water-resistant putty?

：（1），，，
。（、、）
。

（2），
。

（3），，，
。

17、？

：（1），，
。

（2），
。

18、？

：（1）（），
。

（2），，
。

（3），
。

（4）（5℃）
。

19、，？

：，3
。

20、？

：：

（1），，
。

（2），，
。

21、？

：，
。

，
。、，
。

，，，
。

22、，？

：，，
。，
。

23、？

：（1），，，107
。801、803、901，、，
。、、
。：，
。：107“”，，，，，
。801107，107，，，，，，
。107801
。

107801：≤5g/kg
。200271gb18583－2001《》“”，≤1g/kg，107、801，，，“”，
。：90％，
。

（2），，，108
。、，、、
。：（1），，

，，
。（2），、，
。：、、，，
。

24、，？

：，
。

25、，“+108”？

：（1），，，，
。

（2）“+108（）”，，，，，，，
。

26、？

：(、、)，，，
。（：N3-800），，、
。，，
。，，；，，
。

27、107，107？

：107，107，107、、、
。，107、、
。107，
。、，
。，，
。

28、，，，？

：（1），、，，

，，
。
。

（2）：，，，
。

（3）：
。

29、，？

：、、、
。
。

30、，？

：，，、、、
。（：N3-800），，
。

31、？

：，：

（1），，
。

（2），，，
。

（3），、、
。

32、，，？

：，：

（1）
。

（2）、
。

（3）
。

33、“，+”，？

：，，，
。，
。、、，，，
。

，，，，，
。，
。，（：N3-800），
。，
。“，+”，，，
。

、

34、，？

：，
。

35、“”，，？？

：，，
。：2，，
。

36、？（821）？

：（1）821，，821，、、
。，，
。

（2），，
。：，
。

37、“+”“+”，？

：（1）“+”
。

（2）“+”
。：，，，“+”，，
。

（3），“+”，
。

（4），，
。“+”，，
。

38、，，，，
。？

：（1）、，，，、；、，、
。

（2），，、，，
。

（3），
。

（4），，
。

（5），
。，
。

39、，，？？

：（1），，
。

（2），，
。

（3），，
。，，，
。：N3-800
。

40、，，，？

：，，
。，，
。

41、，，，，，，？

：（1），，
。

（2），
。：，、
。

（3），108、，、，
。

（4），、
。

42、？

：4：、、、
。

43、，；，
。？

：，，
。，，，，，，
。，，，
。，200W
。
。

44、，、
。？

：（1），、，
。

（2），，
。、、、、，
。，，，
。

（3），，，，，
。
。，，
。

45、，，
。，，？

：，，
。，、、、、，
。：，，，
。

46、，，？

：（1）、、、，，，，，108，
。

（2）、、、，
。

47、，（N3-800），，？

：，，，
。，、、，
。，、、、，，，
。，
。

48、、，，，？，？

：，、，（，），，，
。，，、、，
。

49、，，，；，（5~7），，
。？

：，
。，，
。

50、，，、
。，，？

：，
。，
。，
。

51、，，，？

：
。

(1) If the batch is water-resistant putty, because the water-resistant putty contains a certain amount of water-retaining agent, one day after the batch is finished, although the surface has been dried by hand, the actual deep layer is not completely dry, and the putty layer still contains A large amount of water, when the paint is applied at this time, the excessive water vapor in the putty will have nowhere to be released, and black spots and spots will be produced
.
This phenomenon is generally ventilated for a period of time, the dark spots will gradually disappear
.

(2) If the scraping is ordinary putty, it may be caused by the large water content of the wall and no back cover treatment during construction
.
Leave it in a ventilated place for a period of time, the black spots should disappear slowly, and there is no peeling, hollowing, cracking, etc.
of the paint layer, so do not need to deal with it temporarily
.
If some parts of the paint layer have peeled, hollowed, cracked, etc.
, they must be removed and redone
.

52.
What is water quality putty? What are the disadvantages of it?

A: Water Putty is cross-linked acrylic-based copolymer emulsion is a base polyol, added preservatives, stabilizers, charge nip a mixed cross-linking agents, inorganic filler is made
.
In recent years, water quality putty has become the main material for filling metal surfaces due to its low cost, safe storage and transportation, no pollution, easy sanding, strong adhesion, good scratching properties, no cracking, and good durability
.
But water quality putty has a fatal weakness-foaming
.

53.
In the decoration construction, the construction staff use elastic putty and water-resistant putty, but are more willing to use ordinary putty?

Answer: Firstly, it is a matter of habit; secondly, in comparison, ordinary putty is easier to scratch than elastic putty and water-resistant putty, and it is easier to polish and polish
.
In addition, ordinary putty is relatively cheap if the labor and materials are included
.