Thermosetting Special Powder Coating

Surface Finish Options Overview

I. Product Introduction

In today’s world where extreme performance and environmental protection are both highly valued, the thermosetting special powder coating from MT offers a unique coating experience. We focus on providing high-performance, environmentally friendly powder coating solutions to meet your comprehensive needs for product appearance, durability, and eco-friendliness.

II. Technical Parameters

Film formation efficiency: Single-coating thickness of 60-120 μm (adjustable)

Curing process: 180°C × 15 minutes (low-temperature curing customization available)

Adhesion: 0 grade (ASTM D3359 cross-cut test)

Certification system: Fully certified with ISO 9001/14001. UL, TÜV

III. Product Highlights

Exceptional Weather Resistance: Advanced thermosetting technology ensures that the coating maintains its vibrant color and long-lasting gloss even under extreme climatic conditions. It effectively resists UV aging and extends the service life.

Environmental and Energy-Efficient: 100% solid powder with no solvent evaporation, reducing VOC emissions. It meets international environmental standards, supports green production, and protects our planet.

High-Efficiency Application: High coating efficiency with a single application achieving a thick film, reducing the number of coating layers and lowering energy consumption and costs. It is also easily recyclable, enabling resource circulation.

Personalized Customization: A wide range of color options and special effects (such as metallic glitter, matte, textured finishes) are available to meet personalized design needs, making each product a unique piece of art.

High-Intensity Adhesion: Excellent adhesion and wear resistance, suitable for various substrates including metal, wood, and plastic, ensuring the stability and durability of the coating in complex environments.

IV. Application Scenarios

Industrial Protection Series

Applications: Oil pipelines, automotive parts, heavy machinery

Characteristics: Superb wear resistance, impact resistance, and chemical solvent resistance

Architectural Decoration Series

Applications: Curtain wall aluminum profiles, doors and windows, outdoor railings

Characteristics: 30-year color retention certification, anti-pollution self-cleaning properties

Special Function Series

Fire-Resistant Type (Class A Flame Retardant)

Antibacterial Type (99% Bacterial Inhibition Rate)

Conductive Type (EMI Shielding)

FAQ

1. What is Powder Coating?

Powder coating is a dry finishing process used to apply a protective and decorative coating on metal or other surfaces. Instead of using liquid paint, fine powder particles (usually made of polyester, epoxy, or hybrid resins) are electrostatically charged and sprayed onto a conductive surface. The coated object is then baked in an oven, where the powder melts, flows, and cures into a smooth, durable finish.

Key features:

Durable, hard finish

Resistant to scratches, corrosion, and UV

Environmentally friendly (no VOCs)

2. Benefits of Powder Coating

Powder coating offers several advantages over traditional liquid painting:

Durability: Resistant to chipping, scratching, fading, and wear.

Corrosion Protection: Provides excellent protection against rust and chemicals.

Environmentally Friendly: No volatile organic compounds (VOCs) and minimal waste.

Efficiency: Overspray can be collected and reused, up to 99% material utilization.

Uniform Finish: Smooth, even coating without runs or drips.

Cost-Effective: Single-coat systems can achieve high film thickness, reducing labor and energy.

Aesthetic Variety: Wide range of colors, textures, and effects.

3. What Temperature to Cure Powder Coating

The curing temperature depends on the type of powder used:

Epoxy powder: ~160–200°C (320–392°F)

Polyester powder: ~180–210°C (356–410°F)

Hybrid (Epoxy-Polyester) powder: ~180–200°C (356–392°F)

Typical curing time: 10–20 minutes depending on thickness and oven type.

Always follow the powder manufacturer’s specifications for best results.

4. Process for Powder Coating

The powder coating process usually follows these steps:

Surface Preparation:

Clean the surface thoroughly (remove oil, grease, rust, or dirt)

Methods: chemical cleaning, sandblasting, or phosphating

Pre-Treatment:

Apply a conversion coating or primer if needed to improve adhesion

Powder Application:

Spray the powder using an electrostatic spray gun or fluidized bed

Curing:

Bake the coated object in an oven at the recommended temperature for the powder type

The powder melts and forms a continuous, smooth film

Cooling & Inspection:

Let the coated item cool

Inspect for defects, uniform coverage, and desired thickness

5. How to Spray Powder Coat

Equipment Needed:

Electrostatic spray gun

Compressed air supply

Powder feed hopper or container

Grounding of the object

Steps:

Ground the object: Ensures the charged powder is attracted to the surface.

Spray evenly: Hold the gun 6–12 inches from the surface, moving in smooth, overlapping strokes.

Apply sufficient powder: Ensure full coverage without excessive buildup.

Cure immediately: Transfer the sprayed item to the curing oven to fuse the powder into a solid coating.

Tips:

Maintain consistent speed and distance while spraying.

Use proper ventilation to reduce airborne powder accumulation.

Test a small area to check film thickness and color before full application.