How to determine whether the paint is dry or not, and how long does it take for the waterproof coati

Surface stem: Touch the non-sticky hand with your fingers to be the surface stem.

Practical work: It has a great relationship with the surrounding environment and the base surface during construction. Generally speaking, the reaction curing type will reach a certain strength in about 24 hours, and the volatile curing type will reach a certain strength in 48 hours (not completely solid).

In fact, you can judge the effect of hard work by pulling the coating film by hand, as long as the extension fracture is reached, it is basically hard work.

No, there are many leakage plugging materials that can be wet construction, and it is not necessary to brush waterproof coatings, if you must paint construction:

Polyurethane waterproof coating and polymer modified asphalt solvent-based waterproof coating, in the moisture content greater than 8% of the wet base, the relative humidity of the environment greater than 80% or the condensation of the wall surface, can not carry out the normal construction of waterproof coating, one of the ways to solve this technical problem is the use of wet base surface release agent. The so-called moist substrate release agent is to absorb the moisture on the surface of the substrate during the curing reaction film formation process, and at the same time penetrate into the capillary pores inside the substrate, and the moisture inside the substrate is closed and blocked to penetrate outward, and it is cured within about 2 8 hours. Using this treatment method, the technical problems of waterproof construction of polyurethane and polymer modified asphalt solvent-based waterproof coatings under the conditions of relative humidity of nearly 100% and the water release rate of the substrate budding are 15% have been successfully solved.

The cured release agent layer has strong adhesion to the cement substrate, and the bond strength is greater than 2MPa, and it also has good adhesion strength with polyurethane waterproof coating film, polymer modified asphalt waterproof coating film, etc., and the adhesion strength is greater than that. It can be used for wet treatment on the wet base surface of basements, tunnels, air-raid shelters, roofs, walls and other parts.

The moist substrate release agent is composed of two-component epoxy resin and curing agent, which is mixed and stirred evenly in proportion during construction, and then scraped on the moist substrate and reacted with water to solidify into a film. The moist substrate separator is suitable for moisture insulation treatment where the moisture content of the wet substrate is greater than 15%; It is also suitable for wall moisture insulation treatment where the relative humidity of the polder environment is greater than 80% or the surface is condensed. If the concrete wet base layer after 1 or 2 days of fresh pouring, or on the base layer that has not dried after plastering cement mortar, it can be scraped, brushed or rolled to coat the release agent, and the normal waterproof coating construction can be carried out after the surface is dry.

Article**Global Polyurethane Network).

Before the construction of the damp base surface separator, first clean up the floating soil and scum on the surface of the base layer and wipe off the open water of the base layer. When preparing the release agent, first stir the A component evenly, and then pour the B component into the A component (A: B =, stir evenly, and then use a brush, hair roller or scraper to coat the prepared guard on the wet substrate to form a uniform thin layer of coating film.

Attention should be paid to the construction: 1. When the two components of A and B are mixed, the curing is faster, and it should be used up at 25 hours; 2. There can be no leakage or accumulation in the application process, and when the surface is shiny and not sticky, you can apply the normal waterproof coating.

The waterproof coating film is generally dry for 24 hours, and it takes 3 days to work, so it is recommended to do a good job of waterproof coating 2-3 days after the water storage experiment, and it is clear that there is no leakage, so that the tile can be pasted. The waterproof coating used at home must ensure safety, and the purchase of environmentally friendly waterproof coating is recommended for Keshun waterproofing. Keshun waterproof has formed a waterproof material research and development, manufacturing, sales as the main body, including technical services and engineering services of the multi-format combination, the company is now the vice president of the China Building Waterproof Association unit, has been elected as the top 500 real estate preferred waterproof material brand for 10 consecutive years, has signed strategic cooperation agreements with more than 100 well-known real estate companies such as Country Garden, Vanke, Sunac China, Greenland Holdings, China Shipping, Shimao, Longfor Group, China Merchants Shekou, etc., ranking among the top three in the industry's comprehensive strength.

In addition, Keshun is currently a permanent council member of the "China Building Waterproof Materials Industry Association" and the "China Construction Industry Association Waterproof Engineering Technology Professional Committee", and has won the honor of "Jinyu Award", the highest engineering award in China's building waterproof industry.

The waterproof coating film is generally 24 hours a day, 3 days of hard work, so it is recommended to do a good job of waterproof coating 2-3 days after the water storage experiment, clear no leakage before you can paste tiles.

After the first application of waterproof coating and the second application, the interval is 1-2 hours, just non-sticky, and then the application is carried out. The thickness of each painting 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.

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

Construction requirements. Before the coating is applied, the defects and water seepage on the surface of the base must be carefully treated. Because when the paint has not yet solidified, if it is subjected to water pressure, the paint will not be able to solidify or form cavities, forming a hidden danger of water leakage. The base surface is clean and free of floating slurry, which is conducive to uniform coating of the paint and has a certain adhesion to the base surface.

It is difficult to dry the base surface in underground engineering, so this article only puts forward the requirements of no water beads and no water seepage.

It is difficult to coat the yin and yang angles of the base layer, and according to engineering practice, the yin and yang angles are made into an arc shape to ensure the coating quality of these parts.

The construction of the coating waterproof layer is only a process in the construction process of underground engineering, and its follow-up processes, such as backfilling, bottom plate and side wall binding reinforcement, pouring concrete, etc., may damage the coating waterproof layer that has been done, especially the waterproof layer of organic waterproof coating. Therefore, this article makes clear provisions on the protective layer of the waterproof layer of the coating.

When the temperature is suitable and the ventilation is good, it generally takes 2-3 hours, and the drying time is longer when the temperature is low or the ventilation is not good.

Polyurethane waterproof coating (toxic type): made of polyurethane and coal tar as raw materials, volatile tar gas is highly toxic, and was banned in China in 2000. But there are also merchants in **.

Polymer cement-based waterproof coating (environmentally friendly): It is composed of a variety of water-based polymer synthetic emulsions and high-quality cement mixed with various additives, which is impermeable, not easy to loosen the skin, and non-toxic and environmentally friendly.

How long does waterproof last:

In the case of water-based materials, it will dry in about 1 hour, and in the case of polyester waterproof materials, it will take at least 24 hours to dry. In addition, the time and temperature of the toilet are also closely related, the temperature is high, the dry is fast, and the temperature is low, the dry is slow.

How to make the bathroom waterproof:

1. Level the ground.

First of all, the ground should be cleaned and leveled, if the old house is renovated, the original floor tiles should be knocked out first, and then the ground should be finished with cement mortar, and waterproof treatment should be done, so as to avoid the uneven thickness of the waterproof layer caused by the uneven ground.

2. Wall treatment.

After the floor is leveled, apply about 30 cm of waterproof paint to the surrounding walls, preferably at a height of meters, to prevent water from seeping into the walls during use. If you have a bathtub in your home, the height of the water-repellent coating is higher than the top edge of the tub on the wall near the tub area.

3. Test the experiment of water.

After the bathroom waterproofing is the best, it is necessary to carry out a waterproof test, fill the bathroom with water, and then wait for 24 hours to see if there is leakage and other phenomena on the surrounding walls and ground.

Bathroom waterproofing precautions:

1. Do not brush waterproof paint on rainy days.

The waterproof coating is generally applied 3 times, of which the drying time of a single group of environmentally friendly polyurethane coating is 3-4 days, and if it is raining, it will affect the effect of the waterproof coating.

2. Hydropower reform does not destroy the original waterproof layer.

The new houses are waterproof, so the original waterproof layer cannot be destroyed when carrying out the hydropower reform. If it is accidentally damaged, the waterproof layer should be repaired as soon as possible to avoid water leakage.

Waterproof coating depends on what brand is used, Bohong Yusika is generally 24 years later, first of all, the indoor ventilation should be good, which is conducive to the full combination of coating moisture volatilization and cement substrate.

How long the interior waterproofing coating dries depends on the season and the humidity in the air. 1. Generally, when it is hot in summer, the waterproof coating can be dried in about 24 hours. 2. If the humidity in the air is relatively high, it may not be dry for 24 hours.

You need to wait an extra day to ensure that the waterproof layer is dry. 3. If it is winter, the weather will be a little cold, and the waterproof coating will be almost dry in 2 days. 4. If it often rains and the air is humid in winter, it generally takes about 3 days for the waterproof coating to dry.

Rust fixing on the roof: anti-rust and rust fixing primer is used, and training and operation can be carried out free of charge in terms of technology. After the roof is cleaned and cleaned, the rust primer is evenly sprayed, and the aging layer is closed instantly, soaked to the galvanized layer, and the galvanized layer is no longer continuously corroded, rusted and rotten.

Finishing hygieneBefore spraying, it is necessary to sort out the surface dust to ensure that the roof is clean, boring, no construction binders, no oil stains, and no floating ash. The purpose is to make the waterproof and anticorrosive coating effectively bond with the metal roof.

Dear, hello, I am glad to disturb your answer: waterproof coating can be dry in a few hoursAnswer: waterproof coating can generally be dry in 8-24 hours.

The method of measuring the difference is relatively simple, cover the base layer of polyurethane waterproof coating with a rubber plate of 1 size and thickness, stand for about 2 3 hours, if there is no watermark on the surface of the covered base layer, and the rubber plate that is close to the base layer also has no condensation watermark, it proves that the moisture content has been less than 9%, and the waterproof coating slow liquid material has been dried, and meets the construction requirements.

Substrate treatment is the key link to ensure the quality of construction, in which to ensure that the wall is completely dry is the basic condition, and should generally be placed for more than 10 days. The wall must be flat, and the putty should be scraped twice to meet the standard requirements.

Latex paint. The application method of painting can be hand brushing, roller coating and spraying. When brushing, it should be operated continuously and quickly, and it should be brushed at one time.

When painting latex paint, it should be uniform, and there should be no missing brushing and flowing adhesion. Brush it and polish it. Generally, it should be done more than twice.

Warm reminder, to wait for drying before construction, during which the normal drying time is 1 to 2 days, but also according to the actual situation of the weather, as far as possible to extend the putty drying time, generally 2 to 3 days is appropriate. Then the application primer will do.

Generally speaking, it takes 2 days for the waterproofing agent to be completely dry after brushing it three times. To do waterproofing, you need to do it on the front of the water.

Brush three layers of waterproof coating, and wait for the last waterproof coating to dry before the next waterproof construction. It depends on the weather, with sunny and dry weather taking less time to dry out.

For the tile surface, first check whether the filling of the tile gap is complete, and the exterior wall paint can be waterproofed with transparent waterproof repair adhesive.

It should take more than 1 day to go down three times, and 2 days if it is dry three times.

1. 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.

2. There are two categories of waterproof materials on the market: one is polyurethane waterproof coatings. These materials are generally made of polyurethane and coal tar.

The tar gas it volatilizes is highly toxic and not easy to remove, so it was banned in China in 2000. The polyurethane waterproof coating that is still on sale uses asphalt instead of coal tar as a raw material. However, when using this kind of coating, it is generally diluted with organic solvents such as toluene and xylene, so it also contains toxicity; The other type is polymer cement-based waterproof coatings.