| Customization: | Available |
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| Color: | Black |
| Appearance: | Powder |
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Black Matte Powder Coating for Supermarket Shelves
Many people enjoy using polyester powder coating because it is efficient to use and offers a cost-effective way to give workpieces a protective and smooth finish. If you're still deciding whether this is the right coating to use, our guide will provide you with all you need to know to make your decision. Below, we explore what polyester powder coating is, the benefits it provides, which industries and products they suit best and how you can apply it to your products.
All About Polyester Powder Coating
Polyester powder coating is a free-flowing, dried powder you spray onto a material using a spray gun. This powder is electrostatically charged to ensure the powder sticks to the workpiece while it's connected to the ground circuit. For this reason, polyester powder coatings are mainly suitable for conductive materials like metal.
Polyester powder coating is a more durable long-term solution compared to traditional painting methods. Since the free-flowing powder can make the surface hardwearing, it can allow the coating to become more resistant to color fading and weathering. While abrasion is still possible, many choose to use this coating because it can work well against corrosion and can last longer with proper maintenance.
How Is Polyester Powder Coating Made?
Polyester powder coating is made using various raw ingredients, such as resins, pigments, matting agents, flow agents, curing agents and waxes, to name a few. The manufacturing process for polyester powder coatings generally involves five primary steps:
1. Dry blending all the raw ingredients.
2. Passing the ingredients through an extruder at an elevated temperature to melt the resins, mill the pigments and attain a homogeneous mix.
3. Rapidly cooling the extrudate.
4. Milling the flakes of the extrudate to the final size in a multi-stage process.
5. Removing any oversized and undersized particles.
How Is Polyester Powder Coating Applied?
The process of applying polyester powder coating involves using a spray gun to coat the workpiece in electrically charged powder. Once this is done, you heat the workpiece to ensure the powder cures and bonds to the product's surface, helping you create a protective layer. The result is a uniform and smooth finish similar to a painted finish. Before beginning the process, you may also sandblast the workpiece to further improve the finishing look.
How Thick Is Polyester Powder Coating?
The thickness of polyester powder coatings is typically greater than 30 microns. The exact number will vary depending on the coating supplier you work with and what the coating is for. For example, for items used in marine environments, you might apply a minimum of 60 microns.
Is Polyester Powder Coating Safe?
From certain perspectives, polyester powder coatings are relatively safe. For instance, the coating is safe in terms of environmental health. Otherwise, there are a few hazards to stay mindful of during the coating process. Dust clouds from excessive powder may result in a fire or dust explosion if ignited. For this reason, we advise implementing an exhaust system and always wearing safety equipment to ensure your personal health and safety.
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