Master, what is the function of fire retardant paint defoamer?

The fire retardant coating defoamer is suitable for the foaming process of fire retardant coatings, which is used to remove foam and inhibit foaming, so that it is not easy to produce shrinkage porosity in the system and is easy to use. Thank you.

The antifoam of fire-retardant coating is a composite product of organic polyether ester, mineral oil and alcohol, which is refined by a special process. It is a kind of paint defoamer, which is mainly used to defoam and inhibit the problem of paint foaming.

In general, in the building materials industry, these materials that belong to flammable substrates, steel structures, and wood surfaces will choose to use fireproof coatings to improve their fire resistance. However, when using fire-retardant coatings, it is often easy to cause a problem, that is, the foam problem. In fact, these foams are mainly caused by raw materials, surfactants, stirring, gas ingress, etc.

If these foams are not treated in time, the quality of the product, the cost of production, and the production process will be affected. At this time, workers often choose fire retardant paint defoamers to solve these foams.

Fire retardant coating defoamer.

1. Especially suitable for water-based coating system;

2. It can prevent microbubbles and large bubbles;

3. High degassing efficiency;

4. High compatibility;

5. Suitable for varnish and base paint;

6. It can be used for airless spraying formula;

7. Surface coating of high-build coatings, brushed coatings and synthetic latex;

8. Interior and exterior wall latex paint; Waterproof coatings, medium and high PVC latex paints, relief paints, low-gloss magnetic paints, anticorrosive paints, various engineering paints, PVC suspended resins and, plant or vegetable detergents, etc.

The stock solution can be added directly, or it can be added in batches, half of which is added in the grinding stage, and the other half is added in the paint mixing stage. The sustainability of this product is related to the system. The dosage is the total recipe:. Please experiment for the specific dosage.

Waterproof coating defoamers can reduce the amount of other additives and minimize surface defects, long-lasting, easy to add, with good compatibility and no delamination. It is used with other wetting agents to have a reinforcing effect, a wide range of compounding, can eliminate microbubbles, solvent-free, stable to temperature and pH, suitable for automotive original equipment preparation coating coatings, wood coatings, industrial maintenance coatings, metal coatings, paper coatings and architectural coatings, as well as printing and dyeing inks, dampening solutions. Particularly suitable for waterproofing coatings, they exhibit excellent long-term stability without loss of gloss or clarity.

For the use of waterproof coating defoamer, in fact, the operation is very simple, many people hope to add the defoamer to the solution at one time, and then control the foam in the whole process, but in fact this effect is not good. Because the defoamer needs to discharge the foam stabilizer at the interface between liquid and air, it can play a defoaming role. During this process, there are a number of factors that remove the defoamer from the surface, and over time, the defoamer slowly dissolves or emulsifies into the liquid, losing its ability to defoam.

Summary. Water-based paint defoamers should be chosen, which are defoamers composed of non-silicone components.

How to use paint defoamer?

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Hello dear, the use of paint defoamer is as follows: 1. Stir slightly before use. 2. The amount of defoamer added is generally <> directly injected into the foaming system during use

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What kind of defoamer is appropriate for the paint.

Water-based paint defoamers should be chosen, which are defoamers composed of non-silicone components.

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Paint defoamers typically use the following defoaming principles to inhibit bubble formation and stabilization in coatings:

1.Surfactant principle: The surfactant in the paint defoamer can reduce the surface tension of the liquid surface, so that the formation and stability of bubbles in the paint are reduced.

These surfactants are able to adsorb on the surface of the bubbles and change the shape of the bubbles, which can burst or merge, reducing the number and size of bubbles in the paint.

2.Foam breaker principle: The foam breaker in the coating defoamer can reduce the viscosity of the liquid at the balance scale, so that the bubbles are easy to burst and release.

These foam breakers form tiny bubbles in the paint, and the bursting of these tiny bubbles can help release large bubbles, thereby reducing the number of bubbles in the paint.

3.Principle of antifoam: The antifoam in the paint defoamer is not high by chemically reacting with the surface of the bubble to change the surface characteristics of the bubble, thereby destroying the stability of the bubble.

These antifoams are able to interact with the coating components on the surface of the bubbles, reducing the surface tension of the bubbles, causing them to burst and dissipate.

4.Inerting agent principle: The inertizer in the paint defoamer can reduce the formation and stability of air bubbles in the coating.

These inerting agents reduce the formation of air bubbles by reacting with the active ingredients in the paint. Inerting agents inhibit sources of bubble formation, such as reducing volatile components in the paint or reducing the surface tension of the paint, thereby reducing the formation of bubbles.

The above is the common defoaming principle of paint defoamer, and different defoamers may use different principles or a combination of multiple principles to achieve the defoaming effect. The choice of defoamer depends on the nature of the coating, the application requirements and the characteristics of the defoamer.

The main principle of paint defoamers is to eliminate foam by reducing the surface tension of the paint.

The following points should be paid attention to when using paint defoamers:

1.It must be fully stirred before use, and generally does not need to be diluted with water, it can be added directly, and it can be used with the mixture if it needs to be diluted.

2.It is added while the paint is stirred so that the defoamer can enter the system.

3.In order to achieve a good defoaming effect, it is added twice, adding half of the total amount when preparing the paint at the same time, and then adding the other half after grinding.

4.The dosage of defoamer should be appropriate, and adding too much will bring *** and cause problems such as shrinkage porosity in the coating film. The amount of this dispersion is small, and the defoaming effect cannot be achieved.

5.After adding the defoamer, it takes at least 24 hours to test the performance of the coating, because the defoamer is durable, otherwise there will be shrinkage holes and other product quality problems.

According to the production process, the paint defoamer section is divided into two categories: grinding stage and paint mixing stage.

Grinding stage defoamers, usually high solids, need to be added together with pigments and fillers and nucleated or ground.

In the painting mixing stage, it is usually easy to disperse, and can be added with resin, solvent, etc.

Paint defoamer is a chemical used to eliminate the surface of the paint chain to celebrate the bubbles, which can effectively improve the aesthetics and coating effect of the paint surface. When using paint defoamers, you need to pay attention to the following aspects:

1.Choose the right defoamer. Different types of paint defoamers have different dispersion and stability, and the corresponding defoamer should be selected according to different paint types.

2.Be mindful of the dosage used. The amount of defoamer used should be controlled according to actual needs, as excessive use can significantly reduce the quality of the coating and can lead to other problems.

3.Avoid over-agitation. Mixing too long or too fast will destroy the surface tension of the coating, resulting in the formation of afterglow bubbles and the loss of the original aesthetics of the coating.

4.Avoid excessive temperature or humidity in the painting environment. In a high-temperature environment, it is easy to cause the volatilization of the defoamer to be too fast, which accelerates the drying of the coating surface, and then leads to the generation of surface bubbles; An excessively humid environment can also accelerate the evaporation of surface moisture, increasing the risk of bubbles.

5.Follow safe operating procedures. Most of the defoamers are chemicals, and they need to follow the corresponding safety operating procedures when using them to prevent accidental ingestion or direct contact**.

In short, when using paint defoamers, you need to master certain skills and precautions to achieve the best results in the coating process.

A few days ago, someone asked me how to solve these foams or bubbles when painting the wall, and I believe this is also a problem that many people are concerned about. To solve the problem of foaming during painting, paint defoamers can be used to eliminate or suppress foaming. Let's take a look at how paint defoamers solve foam.

First of all, let's talk about how the paint blisters during the painting process, because the surface tension between the paint and the wall is small, and the existence of voids in the substrate to be painted will lead to chemical instability and foam. Of course, improper operation of spraying, brushing, and rolling during the construction process may also lead to air bubbles. The bubbles produced will seriously affect the painting, will form large and small protrusions or grooves, affect the appearance, and more seriously, there will be a series of problems such as the peeling off of the wall skin and the mold and corruption of the wall in the later stage.

Okay, let's see if paint defoamers can solve these troubles. After consulting a large number of information, it was learned that the paint defoamer is a defoamer made of polyether as the main raw material and a variety of additives. Foam is eliminated and foam is suppressed by reducing the surface tension of the foam.

Moreover, it has been proved that it can effectively solve the problem of blistering when applying paint.

Paint defoamers are mainly used for defoaming through low surface tension and strong dispersion and permeability. It is mainly composed of polyether modified silicon through special technology.

The coating defoamer is a high-efficiency silicon polyether modified composite special defoamer. It is characterized by good foam definement ability in various types of emulsions, fast bubble breaking speed, long foam inhibition without rebound, low dosage, and easy to be degraded by microorganisms after environmental protection discharge, no defects.

Low surface tension is the main focus for defoaming.