Epoxy polyester powder coating

Surface Finish Options Overview

Product model

GA, SF, FX, etc.

Product characteristics

The coating has good decorative properties, good adhesion and excellent mechanical properties.

Product application

Used for surface coating of refrigerators, household appliances, medical equipment, lighting, steel furniture, aluminum products and mechanical products.

Quality index

Standard number：Q/JSQ13-2006

Construction reference

Construction method: spraying, voltage 50~100kv, air pressure 0.5~1.5kg/cm², spraying distance 150~300mm, coating thickness 60~80um, curing temperature 180℃/15min or 200℃10/min.

Construction instructions

The workpiece should be pre-treated before spraying to thoroughly remove surface contaminants. The compressed air should be oil-free and water-free and the oil-water separator should be checked frequently for normal operation. The working chuck should be of appropriate size and cleaned regularly to maintain good connection with the grounding transmission part. The powder feeder, powder gun and recycling system should be free of pollution and should not be mixed with powder coatings of different manufacturers or models, otherwise it will affect the appearance of the final coating. The temperature in the oven should be uniform, and the temperature difference of each part should not be greater than ±5℃ to reduce color difference. The recycled powder coating must be sieved and then mixed with new powder in the specified proportion. Dust should be avoided in the construction site to avoid affecting the appearance of the coating.

Packaging specifications

20kg/carton

Storage instructions

The product is sealed and stored in a ventilated place indoors at room temperature (<35℃). The storage period is one year from the date of completion of production. Expired products can still be used after passing the inspection.

Quality statement

The information and data provided in this manual are only used as our company's suggestions for customers to refer to when selecting products. Although our company strives to ensure the accuracy of the information and data provided, in actual applications, many factors such as substrates, construction conditions, and use environment are beyond our control. Therefore, our company can only be responsible for the quality commitment of the relevant products themselves, and is not responsible for other aspects.

Types of powder coating

Powder coatings can be categorized by resin system (epoxy, polyester, hybrid, polyurethane), appearance (smooth, texture, hammer, metallic, pearlescent), or performance level (anti-corrosion, heat-resistant, UV-resistant, architectural grade, automotive grade).

Powder coating colours and effects

Powder coatings offer thousands of colors in gloss, matte, satin, metallic, candy, texture, wrinkle, hammer tone, wood grain, fluorescent, and other custom effects. Special powders can create soft-touch, anti-scratch, anti-fingerprint, or anti-graffiti surfaces.

Powder coating process

The process generally includes surface pretreatment (degreasing, phosphating, chromating, sandblasting), drying, electrostatic spraying, curing in an oven, and cooling. A well-controlled pretreatment and curing process ensures strong adhesion and long service life.

Powder coating benefits

Powder coatings are environmentally friendly, solvent-free, and produce minimal waste. They offer excellent corrosion resistance, weather durability, mechanical strength, and uniform film appearance. The coating is tough, impact-resistant, scratch-resistant, and has a long lifespan.

Applications for Powder Coatings

Powder coatings are widely used in appliances, aluminum profiles, architectural components, automotive parts, bicycles, furniture, outdoor equipment, machinery, electrical cabinets, pipeline systems, and general industrial and consumer goods.

FAQ

What is Powder Coating?

Powder coating is a dry finishing technology where finely ground powder is electrostatically sprayed onto a metal or non-metal surface and then cured at high temperature. After curing, the powder melts into a continuous, durable, and decorative coating layer.

What does powder coating do?

Powder coating protects the substrate from corrosion, weathering, chemical attack, and mechanical wear. It also provides decorative appearance with rich colors, gloss levels, textures, and special effects.

Is powder coating better than paint?

In many industrial applications, powder coating outperforms liquid paint. It forms a thicker and tougher coating, resists corrosion and chemicals better, and does not contain VOCs. It also provides excellent consistency and cost-effective mass production.

Why is it called powder coating?

It is called powder coating because the coating material is a solid powder instead of a liquid paint. The coating is formed by melting and curing powder particles under heat.

What are the different types of powder coating?

Powder coatings include several families depending on resin chemistry:

• Epoxy powders

• Polyester powders

• Epoxy-polyester hybrid powders

• Polyurethane powders

• Acrylic powders

• Fluorocarbon (PVDF) powders

Each type has its own performance features such as corrosion resistance, UV resistance, chemical resistance, outdoor durability, or decorative properties.

Which material is used in powder coating?

Powder coatings are based on thermoset or thermoplastic resins combined with pigments, curing agents, fillers, additives, and in some cases metallic or effect particles. Common substrates include steel, aluminum, galvanized metal, MDF, and certain heat-resistant plastics.

How long will powder coating last?

The lifespan depends on powder type, film thickness, application method, pretreatment, and service environment. Indoor coatings can last more than 10–20 years. High-grade outdoor polyester or fluorocarbon powders can last 15–25 years or longer under UV exposure.