What types of powder coatings does Leka Material offer?

Leka Material offers glossy smooth surface, matte smooth surface, sand grain texture, and wrinkle texture powder coatings suitable for various industries including steel furniture, mechanical equipment, fitness equipment, and road traffic facilities.

Is Leka Material ISO certified?

Yes, Leka Material is an ISO certified powder coating manufacturer based in Luoyang, China, ensuring high quality standards and consistent product performance.

Does Leka Material provide free powder coating samples?

Yes, Leka Material offers free powder coating samples for customers to test and evaluate before placing bulk orders.

What industries does Leka Material serve?

Leka Material serves steel furniture manufacturing, mechanical equipment, fitness equipment, and road traffic facilities industries with specialized powder coating solutions.

What is the difference between smooth and texture powder coating?

Smooth powder coatings (glossy and matte) provide a sleek, even finish ideal for indoor applications, while texture powder coatings (sand grain and wrinkle) offer enhanced durability, scratch resistance, and are suitable for outdoor and high-wear environments.

Pre-treatment for powder coating

In the powder coating process, the pretreatment process is a crucial step that determines the quality and durability of the coating

The main process flow of pre-treatment for powder coating:

The pre-treatment for powder coating usually involves steps such as degreasing, rust removal, phosphating (or passivation), cleaning and drying

Deoiling / Oil Removal

Soak or spray the tank with alkaline or neutral cleaning agent to remove the remaining oil stains on the workpiece surface

Washing

Clean the remaining substances on the surface to ensure the smooth progress of the subsequent processes

Dealing with rust removal / sandblasting / shot blasting

For the workpieces with oxide scale or rust, they should be cleaned by sandblasting or shot blasting to obtain a rough and clean surface

Washing

Rinse again to remove the dust and debris generated during the sandblasting or shot blasting process

Phosphating / Passivation

A protective film forms on the surface of the workpiece, preventing rust and enhancing the adhesion of the coating

Washing

Remove the residues of phosphating solution or neutralizing solution to avoid affecting the coating performance

Drying

The workpiece is placed in the drying oven to evaporate moisture, ensuring it is dry and ready for electrostatic spraying

The Importance of Pre-treatment for Powder Coating:

Ensure adhesion strength

Improve the anti-corrosion performance

Improve the appearance quality

Sum up

The pre-treatment process before powder coating determines the performance and lifespan of the coating. Scientific procedures ensure its durability and aesthetic appeal, and it is applicable in multiple fields

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Related Powder Coating Application Guides

For product-selection guidance, explore our application pages for warehouse shelving and racking and electrical and energy storage enclosures. Final selection should be confirmed against the relevant TDS, substrate, pretreatment, curing conditions and required tests.

The main raw materials of powder coatings

The issue and solutions of ultrafine powder in powder coatings