What does 911 waterproofing material refer to, and the advantages and disadvantages of 911 waterproo

911 polyurethane waterproof coating is a two-component reaction curing synthetic polymer waterproof coating, component A is a polyurethane prepolymer obtained by polyether and isocyanate through polycondensation reaction, and component B is a colored liquid composed of plasticizer, curing agent, thickener, coagulant and filler. When using, the two components of A and B are mixed in a certain proportion, stirred evenly, brushed on the base surface to be constructed, and reacted and consolidated into an elastic, tough and durable waterproof coating film after a few hours.

Brief introduction. 911 polyurethane waterproof coating is a polymer chemically reactive waterproof coating synthesized from isocyanate as the base material. 911 polyurethane waterproof coating is a traditional waterproof material, which is widely used in roofing, basement, kitchen and bathroom.

In recent years, new waterproof materials have been emerging, and the proportion of 911 polyurethane has declined, but it still occupies an important position in the waterproof industry.

Ingredients. 911 polyurethane waterproofing coating consists of two components. Component B is composed of an isocyanate-based (-NCO) polyurethane prepolymer; Component A is composed of fillers containing polyhydroxyl (-OH) solidifiers, plasticizers, tackifiers, fungal inhibitors, diluents and other additives.

A and B are mixed and stirred evenly, and the isocyanate group and the hydroxyl group produce a chemical reaction, and form a whole, elastic rubber film after full reaction, which has remarkable waterproof effect, strong adhesion and good tensile performance.

Scope of application. 1. All kinds of roofing and toilet waterproofing projects.

2. Waterproofing of the waterfront surface of the underground maintenance structure.

3. Waterproof surface of basements, swimming pools, civil air defense projects, storage pools, etc.

Construction points. 1. Base surface treatment: the construction surface is required to be dry, solid, smooth, dust-free, oil-free, and moisture content of 8%.

2. Strict ingredients: Mix material A and material B according to the proportion provided, and fully stir until the color is black.

3. Primer coating: In order to isolate the moisture of the base layer and improve the bonding strength of the base layer and the coating film, a layer of base treatment agent can be coated.

4. Coating construction: The product coating is usually divided into two times, the thickness of the coating is generally about the appropriate, the second coating construction can be carried out after the first coating surface dry curing, the direction of the coating must be perpendicular to the direction of the first time, and the time interval is subject to the non-stick touch.

911", "851", "JS" is the general code of a waterproof material product, "851" generally refers to "tar polyurethane waterproof coating", "911" generally refers to "non-tar polyurethane waterproof coating". But now the manufacturers do not pay much attention to the rules, and the "911" on the market has a tar type, as well as others. It is suggested that no matter what the name is, the key is what standard the material implements, the standard determines the properties and mechanical properties of the material, and the quality inspection also has a corresponding basis.

Polyurethane waterproof coatings are divided into two types: one-component and two-component (multi-component), and are divided into type and type according to physical properties. See GBT

19250 2003 "Polyurethane Waterproof Coatings".

The advantages and disadvantages of 911 waterproof first explain the following characteristics of 911 polyurethane waterproof coating: 1. The construction temperature of waterborne polyurethane waterproof coating should be 5 to 35 2. When using, do not mix water or other materials with this product 3. Please use appropriate protective measures during construction, such as gloves and so on 4. Good weather resistance, high temperature does not flow, low temperature does not crack, excellent anti-aging performance, can resist oil, wear, ozone, acid and alkali erosion 5, water-based polyurethane prepared slurry should be used up within 1 hour. Advantages of cold coating application:

No need for heating, so there is no problem. 2.Liquid Construction:

It is easy to apply to all kinds of planes, elevations, concave and convex curved surfaces, etc., and can form a large-area continuous waterproof membrane. 3.Wide adaptability:

It can be applied on a moist substrate (no need to dry the substrate, no open water), better than tar polyurethane, wide temperature adaptability, and can withstand various regional climates. 4.High Bond Strength:

It has high bonding strength to concrete, wood and metal, and has high peel strength. 5.Good elasticity:

It can adapt to the deformation caused by vibration, settlement and tensile of the building. 6.High security:

It does not contain tar, which is conducive to environmental protection and meets the requirements of the development of national waterproof materials.

911 is R&D time.

The coal tar used in the past was the 851 type.

The current 911 is non-tar, but many of the so-called 911 on the market are added with asphalt or something, and the real polyurethane content is not high.

A regular 911 can cost tens of thousands of tons per ton.

If there is a use of coatings, you can consider Oriental Yuhong and Zhongying, the quality is almost Yuhong's brand is good, suitable for large projects; Zhongying is cost-effective and suitable for home decoration waterproofing.

911 is the product code of a factory, due to the good operation of the relationship with the design institute, many drawings are directly attached to the 911 waterproof coating logo when designing, and now it seems that it has been registered as a trademark and is not allowed to be used casually. In fact, as long as it is a polyurethane waterproof coating, it is the same thing, only one-component and two-component. The one-component can be used directly, and the two-component needs to be mixed in proportion to the two coatings, and the performance of the two-component is better, and the application is also wider.

The 911 was developed in January '91.

In the renovation project, whether it is the roof or the interior construction, waterproof coatings are required. Waterproofing coatings not only protect the house, but also prevent water leaks in the house. Among the various waterproof coatings, 911 waterproof coating is the most widely used, and understanding the relevant content of 911 waterproof coating in advance is a guarantee for the implementation of decoration waterproof projects.

What is 911 waterproofing coating?It is a new type of polymer multi-functional material, which is a kind of prepolymer synthesized by isocyanate, polyether and other substances through certain processing. 911 waterproof coating has a special advantage in waterproof performance, which can play a role in protecting walls and surfaces, and is frequently used in exterior wall construction and interior decoration.

Is 911 waterproof coating toxic?It is a curing coating, with good environmental performance, a very wide range of use, and it can be made into a variety of colors according to our needs, which can achieve the effect of beautifying the decoration effect. And the material is not any threat to our body, because it does not contain tar and some harmful ingredients, and can also make a certain contribution to the protection of the environment, it is a very green waterproof coating.

What are the advantages of 911 waterproof coating?This waterproof coating has many advantages, so it can be favored by a large number of users in the market. It is very convenient to construct and is not constrained by the environment, whether it is in a wet or dry environment, it can be directly constructedIts coating film is dense and compact, the waterproof layer is complete, no cracks, no pinholes, no bubbles, small water vapor permeability coefficient, and good waterproofnessIt is environmentally friendly, non-toxic and tasteless, and has no harm to health.

Waterproofing engineering is an important work, if the waterproofing work of the family kitchen and bathroom roof is not done well, it will bring great trouble to our future life, and the waterproofing work is completed well or badly and the waterproof material has a direct and inevitable connection, before choosing 911 waterproof coating, understand its characteristics and advantages is to add a double insurance to the waterproof work.

Advantages and disadvantages of 911 waterproofing? Pro, 911 waterproofing is a commonly used building material, and its advantages and disadvantages are as follows: Advantages:

1.Good waterproof performance: 911 waterproof has good waterproof performance, which can effectively prevent water penetration and water leakage.

2.Strong durability: 911 waterproof has high durability, which can maintain its waterproof effect for a long time and is not easy to age and damage.

3.Convenient construction: 911 waterproof construction is simple and convenient, and can be constructed in various ways such as brushing, spraying or roller coating.

4.Waterproofing is suitable for waterproofing the roof, wall, basement and other parts of various buildings. Cons:

2.High construction requirements: Since 911 waterproofing requires professional construction and treatment, it has high technical requirements for construction personnel.

3.Environmental issues: Some 911 waterproof products may contain harmful substances, which may have a certain impact on the environment during use.

In general, as a professional building material, 911 waterproofing needs to pay attention to its cost and environmental protection issues while ensuring the safety and comfort of buildings. In the process of use, it is necessary to select and construct according to the specific situation, and operate in strict accordance with the relevant standards to ensure its waterproof effect and safety.

Advantages and disadvantages of 911 waterproofing?

Advantages and disadvantages of 911 waterproofing? Pro, 911 waterproofing is a commonly used building material, and its advantages and disadvantages are as follows: Advantages:

1.Good waterproof performance: 911 waterproof has good waterproof performance, which can effectively prevent water penetration and water leakage.

2.Strong durability: 911 waterproof has high durability, which can maintain its waterproof effect for a long time and is not easy to age and damage.

3.Convenient construction: 911 waterproof construction is simple and convenient, and can be constructed in various ways such as brushing, spraying or roller coating.

4.Waterproofing is suitable for waterproofing the roof, wall, basement and other parts of various buildings. Cons:

2.High construction requirements: Since 911 waterproofing requires professional construction and treatment, it has high technical requirements for construction personnel.

3.Environmental issues: Some 911 waterproof products may contain harmful substances, which may have a certain impact on the environment during use.

In general, as a professional building material, 911 waterproofing not only ensures the safety of the building and the comfort of the car, but also needs to pay attention to its cost and environmental protection issues. In the process of use, it is necessary to select and construct according to the specific situation, and operate in strict accordance with the relevant standards to ensure its waterproof effect and safety.

What to do if 911 is too strong.

If your 911 is waterproof, you need to be careful not to let water enter the body and disturb the circle when cleaning. It is recommended to use a professional cleaning detergent or a clean, damp cloth for cleaning.

The best and worst ways to distinguish 911 waterproof materials are as follows:

One look: first look at the packaging, whether it meets the outer packaging requirements of the brand product. For example, the color is bright, the handwriting is clear, and the product name, net weight, place of origin, and certificate are marked according to the specifications.

Generally, well-known brands will have a product authenticity inquiry system, which is the most direct and effective way to identify. In addition, the waterproof coating has no precipitation, delamination and agglomeration, and the color is bright, which is also one of the bases for judgment.

Second smell: a good waterproof material will not have an unpleasant smell; After the liquid powder is mixed, it basically does not produce an unpleasant and pungent taste.

Three comparisons: compare whether there is a test report, whether the price is seriously lower than the general market price, don't be greedy for cheap, it doesn't matter if the price is high, otherwise there will be water leakage at home, and rework will be more troublesome.

There are three main categories of waterproofing materials:

Waterproofing membrane, 911 polyurethane waterproofing material, new polymer cement-based waterproofing material. The last category is divided into general-purpose GS waterproof materials and flexible JS waterproof materials. Among them, the universal waterproof material is suitable for the waterproofing of the indoor floor and wall of the family.

Features of waterproof coatings:

1) The waterproof coating is viscous and liquid before curing, so it can form a complete waterproof film without joints not only in the horizontal plane, but also on the façade, yin and yang corners and various complex surfaces during construction.

2) There is no need for heating when using, which not only reduces environmental pollution, but also facilitates operation and improves working conditions.

3) The waterproof layer formed has a small weight, which is especially suitable for waterproofing such as light roofs.

4) The waterproof membrane formed has greater extensibility, water resistance and weather resistance, and can adapt to the slight changes of cracks in the base layer.

5) The coated waterproof coating is not only the main material of the waterproof layer, but also the adhesive, so the bonding quality is easy to ensure and the maintenance is relatively simple. Especially for some parts that are easy to cause leakage, such as base cracks, construction joints, rainwater buckets and through pipes, it is easy to carry out the implementation of enhanced brushing and plastering.

The above content reference: Encyclopedia - waterproof material.