Paint and coating screening is a critical process in manufacturing, especially for automotive, aerospace and architectural coatings. The main purpose of paint and coating screening is to remove impurities and particles to ensure the quality of the final paint. Through screening, the particle size of the coating can be made uniform and the uniformity and gloss of the coating can be improved. In addition, screening can also help ensure that the viscosity and fluidity of the coating meet the requirements, thereby improving the coating effect.


Spray paint, magnetic pigments, non-magnetic pigments, epoxy powder coatings, polyester powder coatings, and acrylic powder coatings.


Powder Coating

Paint Screening

The purpose of flour sifting is to improve the uniformity and quality of the flour to ensure a better taste and appearance of the food during baking or cooking. In flour sifting, vibrating screens are mainly used to remove any solid impurities from the flour, such as flour lumps or other particulate impurities. In addition, flour sieving also helps to make the flour fluffier and easier to mix, resulting in better-tasting pasta or pastries.


Powder Coating Sieve

The purpose of powder coating sieve is to ensure the uniformity and consistency of powder particles. Through screening, impurities and uneven particles in the powder can be removed, thereby improving the quality and uniformity of the coating. In addition, sieving can help control the particle size and distribution of powders to meet the requirements of specific coating applications.

Industry Standard

  • The mesh size for coating in liquid form varies depending on the concentration and viscosity. When the concentration and viscosity are high, the preferred mesh size ranges from 60 to 100 mesh. On the other hand, when the concentration and viscosity are low, the mesh size typically falls between 200 and 400 mesh. Additionally, the industry-standard mesh sizes for spray painting and baking processes are 325 and 400 mesh.
  • Similarly, in the realm of resin production, both liquid and powder forms require careful consideration of mesh size. For liquid resin, the mesh size ranges from 60 mesh to 250 mesh, with higher viscosity and concentration requiring a coarser mesh, and lower viscosity and concentration calling for a finer mesh.
  • In the manufacturing of powder coating, the choice of mesh size is equally important. The raw material manufacturing process generally utilizes mesh numbers such as 100 mesh and 120 mesh, with a few instances of 150 mesh and 200 mesh. However, in the powder coating processing industry, where recycling after painting is common, smaller mesh sizes like 60 mesh, 80 mesh, and 100 mesh are typically used due to the smaller quantity involved.


MaterialMeshMethodProcessing Capacity(Kg/h)Model
Medicine Powder80 meshDry550Vibro Sifter
Nucleotide150 meshDry100Vibro Sifter
Pharmaceutical Granules40 meshDry8000Tumbler Screen
Flour100-180 meshDry100-21000Rotary Vibrating Sieve
Direct Discharge Sifter
Tumbler Screen
Hawthorn powder300 meshDry600-2000
Starch300 meshDry600-2000
Rice16meshDry600-2000Rotary Vibrating Sieve
Linear Vibrating Screen

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