How to use waterproof paint well?

How to use waterproof coatings.

1. Scraping method.

The scraping method is a more commonly used method, which can be scraped off by metal scraping tools such as horn scrapers and plastic scrapers to scrape off various high-pitch waterproof coatings or gaps on the surface of the object.

2. Roller coating method.

The roller coating method uses a roller brush to paint a large area on the wall, rolling back and forth on the surface of the wall, and sticking the paint to the wall. However, with the development and progress of science and technology, the roller coating device of air compressor to convey paint has been adopted, which has shorter working hours and better results.

3. Coating method.

The pervasive coating method can strengthen the adhesion of the surface of the object, and this method tests the professionalism of the technicians, from the construction efficiency to the labor intensity, which is not a small test. Not only should there be no brush marks on the surface of the coating, but also the decorative aesthetics of the coating should be considered.

4. Spraying method.

The spraying method requires the use of spray gun equipment, depending on the spraying method. It can be divided into gravity type, suction type and pressure feeding type, if the viscosity of the paint is high, it needs to be promoted by high pressure, and the nozzle should be selected with a large diameter, if the viscosity of the paint is low, the pressure is small, and the nozzle can be appropriately selected with a small diameter.

Waterproof paint is brushed in the wall paint, if you are an old house leaking or something, you need to shovel off all the old paint on the wall, clean the wall, and then paint the waterproof paint. As for the detailed construction tutorial, the packaging of the general waterproof coating can be checked, and I personally recommend Keshun family waterproof products, the quality is OK, and the big brand is guaranteed, I hope it can help you

With the continuous improvement of everyone's living standards, many new products are constantly presented in people's sight. Waterproof coating is one of the new products, which can meet the waterproof needs of users, so it quickly gained a foothold in the market. So, how to use waterproof coatings?

What should I pay attention to when using waterproof coatings? Let's take you to find out.

Waterproofing coatings are used in the order of mixing, painting, curing, protecting and inspecting. The waterproof coating needs to be poured into a container for stirring before use, and it cannot be poured all at once, it should be stirred while pouring, and the stirring time is best mastered in 3 to 5 minutes, and then stirred until there is no powder ball, no particles can be used.

Precautions for the use of waterproof coatings.

1. Stir the paint thoroughly.

The waterproof coating must be fully stirred before use, first pour the liquid additive into a clean mixing container, and then slowly pour the paint while stirring according to the specified proportion, stirring fully for 3 to 5 minutes, to the extent that there is no powder ball and no particles, and it must be used up within the operation time. You can also use machinery to mix, generally 400 to 500 rpm is enough.

2. Treat the substrate.

Rollers or brushes can be used to evenly apply the mixed slurry to the treated substrate. In the process of painting, it is necessary to decide whether to paint 2 layers or more than 2 layers according to the use environment and performance requirements, the thickness of the waterproof layer of general engineering is 1mm, and the thickness of the underground engineering construction specification is long.

3. Do a good job in the second layer of waterproof coating.

After the first layer of waterproof coating is done, it is necessary to wait for it to be slightly dry and just non-sticky, and then carry out the second layer of painting, which generally takes 1 to 3 hours, but the specific situation still depends on the density of the base surface and the temperature at that time.

Article summary: The above is all about how to use waterproof coatings and what to pay attention to when using waterproof coatings, I hope it will be helpful to you. If you want to know more about it, please stay tuned to Qeeka Home.

1. Stir.

Pour the liquid material into the container first, and then slowly add the powder, and stir fully for 3-5 minutes until a uniform slurry without raw flour and particles is formed. (It is best to use a blender).

2. Brushing. Use a brush or roller brush to apply directly to the base surface, and the strength is used evenly, and the brush should not be missed; Generally, it needs to be brushed twice (according to the requirements of use), and the thickness of each brush should not exceed 1mm;

After the previous one is slightly dry, the next one is brushed (just non-sticky, generally at an interval of 1-2 hours), and the front and rear vertical cross brushing, the total thickness of the brush is generally 1-2mm; If the coating has already cured, moisten it with water first when applying another layer.

3. Maintenance. After 24 hours of application, it is recommended to cover the coating with a damp cloth or spray water to cure.

4. Protection. Before it is completely dry after construction, please take protection against trampling, rain, exposure to the sun, sharp damage, etc.

5. Inspection (closed water test).

Toilets, pools, etc., should be filled with water for 48 hours after the waterproof layer is dried (at least 24 hours in summer, at least 48 hours in winter) to check whether the waterproof construction is qualified. Lightweight walls must be tested for watering.

Waterproofing works are the most important in the renovation process, when doing waterproofing worksWaterproof coatingsIt is also different, different building parts, the requirements for waterproof materials are also different. Each material has its own strengths and weaknesses, a material can not cover the world, there is no good material used anywhere, all kinds of materials can only complement each other, and can not be replaced, each has a useful place. So how to choose a waterproof coating?

Below we will bring the selection method of waterproofing coating according to different positions for your reference.

How to choose waterproof coatings:

1. Waterproof bathroom

Because it is indoor, it is not greatly affected by the climate, and the temperature difference is small, so you don't have to pay too much attention to its elongation when choosing waterproof coatings; The structure is complex, there are many pipes, and the area is small, obviously, it is not suitable for the waterproofing membrane of such a narrow bathroom.

2. Waterproof roof

Long-term exposure to the sun, greatly affected by the climate, should be selected large elongation, high tensile strength, good weather resistance waterproof coating.

3. Underground waterproofing

The underground is generally humid, and the waterproof material must have good water resistance.

4. The wall is waterproof

Concrete structures such as underground structures, subways, civil air defense, roads and bridges, pools, sewage pools, hydropower stations, nuclear power plants, water conservancy projects, etc.

That's itWaterproof coatingsHow to choose? Choose the full content of the method according to the different locations.

Here's how to choose:

1. Polyurethane waterproof coating.

The cured coating film has excellent comprehensive performance, and can form a continuous, elastic, seamless, and integral coating film waterproof layer on the base layer with complex shapes. Strong adhesion to various substrates, strong adaptability to substrate expansion, deformation, cracking, etc., known as "liquid rubber" in foreign countries, whether in terms of performance, quality, effect, or economy, etc., has been recognized as the best waterproof coating.

Scope of application: suitable for basement, toilet and bath, kitchen, pool, cold storage, floor and other waterproof projects.

2. Acrylic waterproof coating.

It is a water-based waterproof coating, which forms a jointless waterproof layer after curing, which is environmentally friendly, has good waterproof performance, is easy to operate, can adapt to various complex waterproof substrates and other advantages, and can be constructed on wet substrates. The acrylic elastic coating with 100% pure acrylic emulsion as the base material has excellent weather resistance, and has the dual functions of waterproof and decoration. The coating film has the characteristics of low temperature resistance and high elongation.

Scope of application: pretreatment of wall corners, pipe periphery and yin and yang corners; Waterproof and moisture-proof parts of non-long-term flooding such as toilets, kitchens, floors, balconies, and non-exposed roofs.

3. Polymer cement waterproof coating.

It is a water-based coating, non-toxic, harmless and non-polluting, and is an environmentally friendly coating. The resulting coating film has high tensile strength, good water resistance and weather resistance. It can be applied on a wet base and bonds firmly to the base layer. It has the characteristics of high tensile strength and firm adhesion with the base layer.

Scope of application: suitable for waterproof and moisture-proof toilets, kitchens, floors, balconies, and non-exposed roofs.

4. PMC polymer modified cement-based waterproof gray.

It is a two-component cement-based polymer modified flexible rigid waterproof coating material composed of high-quality acrylic emulsion and a variety of additives, and then composed of inorganic powder composed of special cement and a variety of fillers.

What is a waterproof coating:

Acrylic waterproof coating is a one-component water-emulsion waterproof coating prepared by adding other additives with pure acrylic polymer emulsion as the base material. The waterproof film formed by the waterproof coating after curing has certain extensibility, elastic-plasticity, crack resistance, impermeability and weather resistance, which can play a role in waterproofing, seepage prevention and protection.

The waterproof coating has good temperature adaptability, easy to operate, and easy to repair and maintain.

Although waterproofing coatings are more commonly used, it is also necessary to understand the specific operation methods. How to use waterproof coating? PChouse will take you to find out.

1. Waterproof layer base (leveling layer): the surface of the base layer should be solid with a certain strength, clean and clean, no floating soil, sand particles and other dirt on the surface, the surface is smooth, smooth, no loosening, and it is required to smooth and calender, and the residual mortar blocks or protrusions should be flattened with a shovel.

2. Stirring: first pour the liquid material into the container, then add the powder according to the proportion, and use the stirrer to stir fully for 3-5 minutes until a uniform slurry without raw flour balls and particles is formed.

3. Brushing: Brush directly on the base surface with a brush or roller brush, and the strength should be used evenly, and the brush should not be missed; Generally, it needs to be painted 2-3 times (according to the requirements of use), and the thickness of each painting should not exceed 1mm; After the first one is slightly dry, the next brush (non-sticky, generally 1-2 hours apart), the front and back vertical cross brushing, the total thickness of the brush is generally 1-2mm.

4. Maintenance: After 24 hours of construction, it is recommended to cover the coating with a damp cloth or spray water to maintain the coating.

5. Protection: Before it is completely dry after construction, please take protection such as prohibition of trampling, rain, exposure to the sun, and sharp damage.

6. Inspection (closed water test): toilets, pools and other parts should be filled with water for 48 hours after the waterproof layer is dried (at least 24 hours in summer and at least 48 hours in winter) to check whether the waterproof construction is qualified. Lightweight walls must be tested for watering.