Why is thick paint mixed unevenly with diesel?

The thinner of different paints is different, and the right thinner must be used to dilute the paint. If you use it wrong, it will not play the role of dilution.

1. Acrylic paint thinner.

Acrylic paint thinner can be used to dilute various acrylic paint and nitro paint, this diluent dilution ability is better, but the volatilization rate is relatively moderate, not very fast, so the preparation time required during construction is relatively long, it also has the advantage that the construction environment, construction tools are not high.

2. Amino paint thinner.

Amino paint thinner is obviously used to dilute amino series paint thinner, this thinner has a significant feature, that is, not only can the amino paint be diluted at room temperature, even if the temperature is very high, it can also play the same effect, and can be dried with amino paint at high temperature, will not produce a high temperature reaction, so the high temperature resistance of this diluent is very good, and it is also a characteristic of it.

3. Perchloroethylene paint thinner.

Perchloroethylene paint thinner is mainly used to dilute perchloroethylene paint, perchloroethylene paint includes varnish, putty, primer, magnetic paint, etc., the dilution ability of this diluent is very good, but the volatilization speed is very fast, so the speed is required to be fast during construction, otherwise there will be no effect.

4. Nitro acid diluent.

Nitro acid diluent is usually used in nitro acid varnish, primer and other nitro acid paint series, is currently the most used paint thinner on the market, the dilution performance of this diluent is better than perchloroethylene paint thinner, can be integrated into the paint in a very short time, is now the most ideal diluent material on the market.

According to your description and analysis, if it is confirmed that your paint belongs to nitro paint, then you should continue to dilute it with the corresponding thinner, not with diesel. If it is confirmed to be an oil-based paint, it should also be diluted with gasoline instead of diesel. Thank you for your understanding and support!

Paint can be soluble in diesel, not easily soluble in diesel, solubility is limited, destined to be inefficient, diesel is a mixture of complex hydrocarbons (the number of carbon atoms is about 10 22), not volatile, and contains many impurities, which means that you will have to apply it for a long time to dry, with banana water.

Thermodynamically speaking, the entropy of a closed system will become larger, and the "entropy" here is a manifestation of disorder (the degree of no order, from order-to-disorder), and before stirring, there must be 2 or more materials, respectively, together, then these two materials are separated, they are very ordered, "because stone is stone, sand is sand", artificial stirring increases the entropy of the system, that is, the increase of disorder. From the macro, it is "the stone and the sand are mixed together", which is what we often say "from uneven to uniform".

If you don't agree with the upstairs, if you consider gravity, it may not be even if you don't stir.

The operation of agitating a liquid to make it circulate in a certain way, so that the material is mixed evenly or the physical and chemical process is accelerated. The applications of stirring in industrial production include: the dispersion of bubbles in liquids, such as air dispersion in fermentation broth, to provide oxygen required for the fermentation process; the dispersion of liquid droplets in an immiscible liquid, such as oil dispersion in water to make an emulsion; the suspension of solid particles in liquids, such as adding pigments to resin solutions to prepare coatings; Mixing of mutual-dissolved substances, such as diluting the solution, or accelerating chemical reactions between mutual-miscible components.

In addition, agitation enhances the heat transfer between the liquid and solid walls and evenly heats the material. The methods of stirring include mechanical stirring and air agitation. The movement of the liquid in the stirring tank is divided into general flow and turbulent pulsation in terms of scale.

The flow rate of the overall flow is called the circulating volume, and increasing the circulating volume will help to improve the degree of uniformity of the macroscopic mixing (see Degree of Mixing). The strength of the turbulent pulsation is related to the velocity of the fluid when it leaves the agitator, and strengthening the turbulent pulsation is beneficial to reduce the separation scale and separation strength. Different processes have different requirements for these two flows.

The dispersion of droplets and bubbles requires strong turbulent pulsations; The uniform suspension of solid particles depends on the overall flow. The distribution of energy between these two flows during agitation is an important issue in agitator design. When mixing mixtures, the density difference, viscosity and interfacial tension of the two phases have a great influence on the mixing operation.

The smaller the density difference and the interfacial tension, the easier it is for the system to achieve stable dispersion. The higher the viscosity, the less conducive it is to the formation of good circulating flow and sufficient turbulent pulsation, and consumes more stirring power. The movement of the fluid in the stirring tank is a complex single-phase flow or multiphase flow, and there is no complete description of the method. The agitation of non-Newtonian fluids has some special rules in terms of flow state and power consumption.

The measurement of fluid flow parameters in the stirring tank, the prediction of stirring power, and the amplification method of stirring device are all important topics in the theoretical research and engineering application of stirring.

The simplest is that the movement of molecules is disordered. It's a chaotic movement of freedom. Stirring simply speeds up the homogenizing process. If you don't stir it, it will become uniform after a certain period of time, and you can understand? I don't know how to ask again

A mixerA machine with bladed shafts that rotate in a drum or trough to mix or knead substances to the desired consistency. There are many kinds of mixers, including compulsory mixers, single-shaft mixers, double-shaft mixers, and so on. Notes:

Mixers and automatic feeders must be cleaned inside, especially in winter, so as to prolong their life.

Hello, when brushing the paint, the color is used to mix the color, because the paint is more viscous, you need to use the machine to fully mix and stir evenly, before you can start to use, according to your description, your paint should not be fully stirred evenly, you put the rest of the paint and then fully stir it before use.

What's the difference between PU and PE? 2009-07-28 10:20What is PU paint? What is polyester paint?

Polyester paint is commonly known as "piano paint" inside and outside the industry.

Polyurethane paint is also paint, and polyester paint is only one word difference, but there is a difference of several grades: the volatile organic compounds (that is, the VOC that people talk about tiger discoloration) of polyurethane paint are several times that of polyester paint, which has a strong negative effect on human health.

China needs to use nearly 500,000 tons of various paints every year, of which "polyurethane paint" accounts for eighty percent, and 80 of this part of the mainstream paint have fraudulently used the name of "polyester paint" to enter the market, this kind of polyurethane paint from Guangdong began to call polyester paint practice, in three or four years to develop rapidly. The "habit" has rapidly spread from Guangdong to the whole country, and so far more than 80 enterprises across the country have "slipped away".

The market retail price of polyester paint per kilogram is about 60 80 yuan, while the market retail price of polyurethane paint per kilogram is about 20 35 yuan.

In order to distinguish the products, the industry association marked the product certificate of polyester paint with PE, and the product certificate of polyurethane paint with PU. === At the same time, we can also see the difference between the two paints: unsaturated resin paint, also called polyester paint (PE), its advantages:

1. It has a very good hardness, which can reach more than 3h 2, the topcoat can make a high gloss 3, wear-resistant, acid-alkali resistance, and good heat resistance 4. The fullness is very high and its shortcomings: 1. The operability is more complex because it needs to add initiators and accelerators to play a curing role. The amount of initiator and accelerator should be changed according to the change of temperature and humidity.

In addition, the initiator and accelerator cannot be transferred into the paint at the same time, otherwise it is easy to cause disasters and accidents. There are strict requirements when it comes to blending paints. 2. The active period of the adjusted paint is very short, and the adjusted paint must be used up within 25 minutes.

3. At present, PE topcoat only has bright products, no matte products. Polyurethane coatings are commonly known as polyester paints (PU) Its advantages: 1. Fullness, hardness, and transparency have excellent performance 2. Good stable performance and high product stability 3. It can be combined with other paint varieties to make different performance effects It is a paint with excellent comprehensive performance.

It is also the most widely used. Its disadvantages: 1. The workability is worse than NC paint 2. The fullness and hardness are worse than the common processes of PE paint

1. PU bottom, PU surface: the most common process 2. PE bottom, PU surface: show high fullness, strong anti-sagging, suitable for high-end furniture production 3, PU bottom, NC surface:

Good fullness, fast construction 4, UV bottom, PU surface: the most promising process, extremely high efficiency, excellent product quality 5, PU bottom, W surface: have a certain fullness, strong environmental protection Common construction methods:

1. Spraying (hand spraying, computer spraying) 2. Primer roller coating (not commonly used) 3. Spraying (bottom and surface).

The paint is too thick or too thin, and the paint is too thick, and it is easy to peel when used.

Newly opened barrels of paint should generally be adjusted to the appropriate viscosity with dilution.

Answer: If the paint of the newly opened barrel is too thin, the pigment of the base paint is too little, and the paint is slightly thicker, it is easy to sag. It can be used with thick coatings of the same variety and pigment mixed and stirred evenly.

If it is too thick and uneven, it is too thin and easy to jet, even if the master has good craftsmanship and no jet flow, it will not reach the due finish.

If it is too thick, it will spray unevenly and may produce bubbles; If it is too thin, the paint film is too thin and difficult to cover the bottom.