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Yuan Lei's Little Knowledge | What is Powder Coating

Release time:

2024-01-29 09:35

Powder coatings are completely different from general coatings, and they exist in the state of fine powder. Because no solvent is used, it is called powder coating. The main features of powder coatings are: harmless, high efficiency, resource saving and environmental protection.

Classification:

There are two main categories of powder coatings: thermoplastic powder coatings and thermosetting powder coatings.

Thermoplastic powder coatings are composed of thermoplastic resins, pigments, fillers, plasticizers and stabilizers. Thermoplastic powder coatings include polyethylene, polypropylene, polyester, polyvinyl chloride, chlorinated polyether, polyamide, cellulose, polyester, etc.

Thermosetting powder coatings are composed of thermosetting resins, curing agents, pigments, fillers and additives. Thermosetting powder coatings include epoxy resin-based, epoxy-polyester-based, polyester-based, polyurethane-based, acrylic resin-based, and the like.

Disadvantages: uneven powder on the corners, difficult to cover up the defects of the cured coating, high curing conditions, limited use of the substrate.

 

Features:

1. The product does not contain toxicity, solvents and volatile toxic substances, so there is no poisoning, no fire, no "three wastes" emissions and other issues, fully in line with the requirements of the national environmental protection law.

2. After the pre-treatment of the coated object, one-time construction, no primer, you can get enough thickness of the coating, easy to realize automatic operation, high production efficiency, can reduce costs. High utilization rate of raw materials.

3. It is beneficial to the health of construction personnel and environmental sanitation. The powder attached to the construction personnel can be blown off with compressed air or washed off with ordinary soapy water.

4. Powder coating storage, transportation are safe and convenient.

5. The coating is compact, good adhesion, impact strength and toughness, high corner coverage, excellent chemical corrosion resistance and electrical insulation properties.

 

Advantages:

1, health and environmental protection: eliminating the need to achieve coating performance and add a variety of liquid chemical harmful film forming, dispersion, wetting, leveling, anti-corrosion mildew and other additives.

2, convenient transportation and storage: powder coating, neither water, nor solvent, is completely solid, convenient and safe transportation, when the transportation and storage temperature is lower than 0 ℃, powder coating will not freeze.

3, no preservatives: traditional liquid paint, both water, and bacteria food, easy to be contaminated by bacteria. Therefore, in order to prevent deterioration, it is necessary to add preservatives, and latex powder coatings have no bacterial contamination problems and do not require preservatives.

4. Paint odor: Compared with the general traditional paint odor residue, this paint can be dispersed quickly, which can be said to be immediately eliminated.

 

Disadvantages: curing conditions have certain limitations.

Application:

1. Decorative protective coating

Used for household appliances, metal furniture, automobiles, instruments, bicycles, sewing machines, mechanical and electrical equipment, light industrial equipment, agricultural machinery, construction hardware and other products of the shell and parts;

2. Insulation and moisture-proof coating

Used in transformers, iron cores, coils, resistors, batteries, etc. for motors, electrical appliances, electronic components and other products;

3. Anti-corrosion coating

Used for chemical pool tanks, oil pipelines, drinking water pipelines and valve bodies, household goods, electroplating fixtures, etc.

4. Building painting

Suitable for building doors and windows, door locks, metal structures and pipe fittings, engineering equipment and other outdoor facilities.

5. Antistatic powder

Performance is similar to the insulation powder coating, used in the room and other anti-static place.

What, powder coating, coating, thermoplastic, polyester, painting, thermosetting, performance, transportation, general

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