Do you know the main points of scraping putty?
As a Stainless Steel Trowel Factory, share the methods with you. Putty scraping is one of the methods of interior wall decoration. Putty is scraped on the wall to ensure the wall surface is flat. Generally scrape three times, and then use sandpaper to smooth it. This step is performed before applying the latex paint.
Putty scraping refers to the removal of unevenness on the surface of the base layer by filling or overall treatment and keeping the wall surface smooth and smooth. It is the most important step in the treatment of the base layer.
Stainless Steel Trowel
Putty is a decorative setting material for leveling the wall surface. It is a thick paste-like coating and is an indispensable product before painting. Generally, Stainless Steel Trowel is applied on the primer or directly on the object to remove unevenness on the surface of the object to be coated. It is formulated with a small amount of lacquer base, 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 filler is mainly calcium bicarbonate, talc and the like. It can fill the working surface with local depressions, and it can also be scraped off on the entire surface, usually after the primer layer is dry, and then applied to the surface of the primer layer. It requires good adhesion and no cracks during baking.
The material properties and technical requirements of the putty are as follows:
Carboxymethylcellulose: white floc, highly hygroscopic, easily soluble in water, and mainly plays a role in increasing the viscosity of putty in putty.
Big white: There are two kinds of lumps and powder. Big white requires pure color and white matter, and the fineness requires 80 mesh sieve.
Gypsum: Adopt white plaster powder. It is a gas hardening gelling material. It should not be exposed to moisture and rain. It is strictly prohibited to use damp and agglomerated gypsum.
Talc powder: soft, creamy and light.
Operational points:
1. If you used lime or paint before, to paint latex paint, you must first remove the original wall surface and scrape the putty again.
2. If you want to paint a room with color, you can directly buy latex paint with color. If you redeem it yourself, you must finish it all at once, otherwise, there is a color difference. Of course, the gradual color difference is also a decorative effect.
3. The quality of the roller brush must be good, the hair length is moderate, and the density is uniform, which affects the painting effect.
4. Brush the ceiling first, then the walls.
5. Be sure to do the first pass and then brush the next pass.
6. Even force.
7. Light color brush 2 times, if you want strong colors, 3 times to be uniform.
Note: Don't forget to cover the floor with newspapers and disposable plastic tablecloths, and protect your glasses.
Putty is generally used to fill the wall before the intervention of various types of paint. The general purpose is to make the base layer of the wall smoother and to pave the back paint. Generally, scraping white is actually on the rough surface of the cement. Use the mixture of large white powder, talcum powder and cellulose used in the building to fill the sand consumption and scratch the screen with white walls and ceilings.
Our company also sells Flexible Stainless Steel Trowel, welcome to consult.
Tips: How to Scrape Paint With some Common Tools
A sharp, rigid putty knife or a blade designed for paint scraping is sometimes the best way to remove paint. Dust is still there, but it's minimized and you have better control than if you used a sander. If the structure has very loose or alligatored paint, scraping might just be the best option.
Get a sharpener or a whetstone to keep that scraper sharpened up. Though scraping is hard work, it tends to be the best choice for many general exterior paint stripping chores. Scraping produces dust and airborne debris. So, wear a mask and eye protection before undertaking this project.
When if a painted surface is clean and in good shape, you typically can paint over it without removing the old paint. However, if the old paint is cracked, peeling, blistered, or otherwise loose, you're asking for trouble if you directly paint over it. While fresh paint will initially hide the imperfections, it won't be long before the underlying layer bubbles up and compromises your work.
So to provide a solid base for your next paint color, you'll first have to spend some time on paint removal. Scraping paint is usually done with a wire brush, a paint scraper, or a combination of both tools. This can be a tedious and time-consuming process. If you want, you can limit your efforts to the areas with imperfections and then sand to even out the surface. But for the smoothest finish, it's best to remove all the old paint before proceeding with your new color.
Here are some manual tools that are helpful for paint removal.
1. Wire Brush:
You can use a brush with tines made of metal wire to remove raised, peeling, or blistered paint. Wire brushes are inexpensive and quick to put into action, as opposed to a power sander that requires set-up time. In addition, wire brushes are valuable for cleaning paint scrapers and other tools, such as putty knives and wallboard knives.
2. Manual Paint Scraper:
The manual paint scraper is an old, reliable way of removing paint. It does take some muscle to remove paint with a manual scraper, but going slowly with plenty of rest breaks will make for a successful job. There are multiple types of paint scrapers to help you get under those stubborn layers of old paint.
3. Heat Gun:
An electric heat gun rated for 1,000 watts or more is a valuable tool for removing paint. While heat guns are slow, they are effective. Some heat guns come with scraper attachments, which makes the paint-removal process even easier. But you also can work with a heat gun and a separate manual scraper.
