Powder coating formulation and production production how to identify the good or bad powder coating

Home decoration can not leave paint, Powder Coating is a new type of solvent-free 100% solid powder coating, with no solvent, no pollution, recyclable, environmental protection, save energy and resources, reduce labor intensity and high mechanical strength coating film Characteristics, very popular with consumers, but also because some of these unscrupulous businessmen for profit and shoddy, then you know what powder coating formulations do? How to distinguish powder coating is good or bad? What I would like to introduce today for everyone's powder coating formulations and production and how to identify the quality of powder coatings is to allow everyone to have a deeper understanding of the coating.

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Powder Coating Formula - Resin, Emulsion

The so-called resin is the metabolite of the plant. The mixed glycerol is incorporated into the cells of the plant, and the resin is extracted from the resin pipe or pipe. The usual sour resin and modified resin are derived from this method. of. Resin raw materials are also the most important basic materials for powder coating formulations. Most resins are characterized by a hard, glossy, partially solid form that is mixed with water and will not be dissolved by water. It is used in the production of powder coatings, will be softened at high temperatures, accompanied by aroma or odor, while the resin is also divided into synthetic resin, natural resin.

Powder Coating Formulation - Thinner

Diluents, also known as fillers by some people, in some powder coating products, in order to facilitate the construction of spray paint, will add some thinner, including kaolin, talcum powder, clay and clay, etc., for the viscosity of the powder coating The reduction is done to facilitate further construction, and most thinners on the market are organic solvents that are cheaper than resins, but they are also used as raw materials in some powder coatings. Not all thinners are added to powder coating formulations. One of the biggest features of the diluent is that its solubility is not limited, and it can be dissolved with other solvents.

Powder Coating Formulations - Additives

For a powder coating formulation such as an additive, I'm sure that everyone has heard the most about it as a food additive. In addition, the powder coating products are also the same as the additives and other ingredients. The additive is added to the coating formulation to further consolidate the stability of the powder coating, so that the use of the powder coating in the construction process can play a protective role on the covering surface of the object, so that the decorative effect is more perfect, the powder coating There are many different types of powder coating products in each category, so not every powder coating formulation will have additives.

Powder Coating Formulations - Auxiliary Materials

The name powder paint is the name of modern civilization. At the beginning, it was called paint. Under the continuous development of modern science and technology industry, the designation of paints has been preserved. For example, now some latex paints, topcoats, primers, etc., the ingredients contained in powder coating formulations, in addition to the above basic raw materials, Its auxiliary powder coating formulations also include pigments, anti-rust pigments, extender pigments, solvents, additives, etc., which can be organic or inorganic, but for now, most powder coating formulations are Organic polymer materials, which are also the most important part of today's powder coating market.

Powder coating formulation and production production

The above is the approximate composition of the powder coating formulation. After understanding the powder coating formulation, the next powder coating production will be very simple. Synthetic resin or natural resin is used as the main raw material in the production of powder coatings. After adding some auxiliary materials such as pigments, auxiliaries and solvents, and grinding, dispersing and other manufacturing processes, a highly covering powder coating is completed. product. As far as the powder coating market is concerned, basic synthetic resins replace the vegetable oils that were originally used to make paints, so they are now generally called powder coatings.

Good or bad powder coating identification techniques: 1, appearance identification method

1. Feel: The hand-induction is silky smooth, loose and floating. The hand feels rough, hands are heavy, and the hand feels heavy. Grasping a powder in the hand, the powder is smoother and looser, and the quality is good. On the contrary, the powder is rough and feels heavy. Poor quality. Not easy to spray.

2. Volume: The larger the volume, the less filler in the powder coating, the higher the cost, the better the powder quality. The smaller the volume, the higher the filler content in the powder coating, the lower the cost, the poorer the powder quality. The same carton, Look at that one's powder is bulky, is a good powder, that home's volume is small, is the poor powder. It is not easy to spray, the secondary drop powder is more, the waste is big, the spraying area is small, the use cost is high.

3, storage time: good powder can be stored for a long time, powder leveling and other effects unchanged. Poor powder can not be stored for a long time, poor powder leveling after 3 months and other effects deteriorated. Normal powder The shelf life at room temperature is 12 months, the use of low-end raw material product quality is unstable, perishable. The use of poor raw materials to produce powder, the spraying surface will accelerate powdering after six months, aging. Affect customer reputation. In addition the powder is not easy to store, give The customer caused a large waste of powder and paid more.

Good or bad powder coating identification techniques: 2, spray area identification method

The normal powder resin content should be about 55-65%, the resin is about 20 yuan/KG, and the filler is about 2 yuan. Some bad powder plants use less than 45% of the resin content to shoddy, increase Filler to reduce costs, reduce the spraying area. Comparison method: the same two kinds of powder sprayed the same product, look at that one of the powder coating products, that one spray product is less, spraying products is less, the use of high cost. For the use of manufacturers to spray, spraying area is small, the use of high cost. According to the calculation of per kilogram of powder spray 6 square, each less one square, equivalent to manufacturers pay more than 3-6 yuan per kilogram of powder, it is recommended to use manufacturers with genuine Powder, carefully calculate your actual use costs.

Good or bad powder coating identification skills: 3, spraying staff work efficiency

Good powder can be easily sprayed, spraying 1-3 guns can cover the substrate, less secondary recycling powder, high work efficiency. Poor powder is not good on the powder, spraying 3-5 guns can cover the substrate , The secondary recovery of powder and more, the work efficiency is low. Operators can spray through the powder rate, the powder falling more than a few to determine. At the same time less output products, more secondary recovery of powder, increase the burden on operators, low efficiency .

Good or bad powder coating identification skills: 4, baking identification method

A good powder does not produce a lot of smoke during the baking process. Poor powder has a lot of smoke during the baking process. Good powder raw materials do not have a lot of smoke, some manufacturers take the raw materials to fill the material. The dosage will increase, the square number will not be sprayed, increase the use cost, and the same amount of powder will produce less product.

Good or bad powder coating identification skills: 5, baked product appearance and gloss recognition method

Good powder products have delicate appearance, fullness, transparency, and strong three-dimensional effect. Poor powder products have a dull appearance, are dull, have a hazy surface, are impenetrable, and have a poor three-dimensional appearance. The appearance of two plates is worse than observing and affects customers. Reputation, affect the appearance of the product. Good luster gloss gloss, can maintain relative luster for a long time. Poor powder gloss just baked out when the effect is good, a few months began to light. Gloss appearance detection is poor The powder made of the material can not maintain the long-term stability of the gloss, appear light, powder, paint stripping and so on.

Good or bad powder coating identification techniques: 6, adhesion and aging identification method

Good powder adhesion, strong toughness, and can maintain a few years of non-powdering, aging. Poor adhesion of the powder is poor, very brittle, 3 months to six months after spraying began aging, chalking. Contrast test adhesion And bending, and observation of the product after several months aging, chalking. Adhesion and poor aging, the product is easy to aging, chalking, rust, shorten product life, affect customer reputation.

Good or bad powder coating identification techniques: 7, high temperature identification method

The temperature is adjusted to 220-230 degrees, and the temperature is kept for 10-15 minutes. The good powder has better temperature resistance and weather resistance, and the color change after baking at high temperature is small, and the gloss change is not large. Poor powder, poor temperature resistance and weather resistance, after the high-temperature baking, severe discoloration, dull gloss, this method is particularly effective for the detection of outdoor light-colored powder.

Good or bad powder coating identification skills: 8, environmental identification method

Good powder materials are produced by large plants, and environmental protection is guaranteed. Poor materials and recycled powder cannot be used to ensure that environmental protection does not exceed the standard in the long-term. Environmental SGS tests help to identify the environmental quality of powder coatings.

Editor's summary: The above is the introduction of powder coating formulations and production methods for how to identify the quality of powder coatings. I hope to help friends who have this need! For more information, please continue to follow our website.