How to calculate the area of ​​putty? Putty powder formula and ingredients

Putty is made of a small amount of paint base, additives, a large amount of fillers and an appropriate amount of coloring pigments. The fillers are mainly calcium carbonate, talcum powder, etc. It is an indispensable part of home decoration wall. How should the area of ​​putty be calculated? Putty powder formula and ingredients, the following is the compilation and sharing brought to you by Encyclopedia Knowledge Network.

Contents of this article

1. How to calculate the area of ​​putty

2. Putty powder formula and ingredients

3. Can I use sandpaper the next day after scraping the putty?

How to calculate the area of ​​putty

In general, decoration projects are:

1. The indoor area of ​​the building is multiplied by 3.5, and the indoor area without a roof is multiplied by 3.0 to make it equal to the wall area.

2. When calculating the area of ​​a house, use the area on the property certificate as the basis, multiply it by 0.7 and 3.5, or multiply it by 3.0 if there is no roof, so that it is equal to the wall area.

3. If the area of ​​the inner wall is equal to the building area, you only need to multiply it by 3. The area excluding the doors and windows needs to be multiplied by 3.5.

4. The building area is 126 square meters, multiplied by 3 equals 378 square meters, so the putty area is 378 square meters.

Putty powder formula and ingredients

1. Formula of ordinary putty powder. Talc 200 mesh: 1000kg Bentonite 10kg Cellulose 25kg Starch glue 10kg

2. Formula of mildew-proof putty powder. Talc 200 mesh: 1000kg Bentonite 10kg Cellulose 25kg Starch glue 10kg Mildew-proof fungicide 0.5kg

3. Water-resistant putty powder formula: 500kg lime, 500kg heavy calcium, 3.5kg cellulose

4. Formula of gypsum and putty powder. Gypsum 400kg Heavy calcium 600kg Cellulose 2kg Retarder 4kg

5. Formula of gypsum and sandy putty powder. Gypsum 400kg Silica sand 600kg Cellulose 2kg Retarder 1.5kg

Can I use sandpaper the next day after scraping putty?

You can sandpaper the next day after scraping the putty. Because water-resistant putty is highly hard, the best sanding effect is when it is 80% to 90% dry. If it is too dry, it will be difficult to sand, and the sanding effect will not be satisfactory. If it is too wet, you can't sand it, otherwise it will be useless. Putty is a decorative material for smoothing the surface of the wall. It is a thick paste-like paint and an indispensable product before painting.

Putty:

It is made of a small amount of paint base, additives, a large amount of fillers and an appropriate amount of coloring pigments. The pigments used are mainly iron red, carbon black, chrome yellow, etc. The fillers are mainly calcium bicarbonate, talcum powder, etc. It can fill the work surface with local depressions, or it can be scraped off on the entire surface. It is usually applied to the surface of the primer layer after the primer layer is completely dry. It requires good adhesion and no cracks during the baking process. The usual putty is to first apply slaked lime to level it, and then apply ordinary putty. Although this method can save money, it will bury hidden dangers from then on. The slaked lime in the wall will react with carbon dioxide in the air to generate calcium carbonate, which will expand in volume, causing cracks in the wall and leakage in the wall, endangering the normal life of residents.