Decorative powder coating series

Surface Finish Options Overview

Product Overview

This series of products includes epoxy, hybrid, polyester, polyurethane and other systems, designed to meet the needs of various complex indoor and outdoor environments.

Product Features

Colorful or simple style, to meet diverse aesthetic needs.Excellent substrate defect hiding ability.Uniform and stable pattern shape, with excellent pattern reproducibility.

Application areas

Furniture products

Shelf system

Iron hardware

Fitness equipment

Lighting products

Security doors

Safes

Industrial equipment

Product series

Surface effect classification (both suitable for indoor and outdoor environments):

Sand effect

Wrinkle effect

Point diffusion effect

Hammer effect

Shrinkage effect

Metallic appearance effect

Technical parameters

Basic properties of powder:

Specific gravity: 1.1~1.8g/cm³

Coating properties

Mechanical properties	Pencil hardness	GB/T6739-1996	≥H
	Adhesion	GB/T9286-1998	Grade 0
	Bending	GB6742-86	Φ3mm
	Impact	GB/T1732-93	50kg.cm
	Cupping	GB 9753-88	>6mm
Corrosion resistance	Salt spray resistance	GB/T1771-91	No change in coating film after 500-1000 hours, unilateral corrosion at the cross section <2mm
	Moisture and heat resistance	GB/T1740-79	>1000 hours slight gloss loss, ≤Grade 1
Weather resistance		Depends on the type of powder coating
Note: The above parameters are laboratory data for reference only. The actual indicators are related to factors such as customer environment, equipment, substrate, pretreatment, and spraying process.

Application conditions

Pretreatment: Phosphating or chromizing treatment is required.

Coating method:

Suitable for corona electrostatic coating.

Artistic effect may vary depending on the process.

Baking conditions: Determined according to the type of product curing system (no specific temperature/time is provided).

Packaging

Carton packaging, lined with polyethylene plastic bags.

Net weight: 20kg/box.

Storage conditions

Environmental requirements: temperature ≤30℃, dry and ventilated, avoid direct sunlight.

Shelf life: 6 months (when the above conditions are met).

Safety and health tips

The raw materials are non-toxic, and no toxic gas is released during baking.

Operation protection:

A dust mask must be worn (avoid inhaling dust).

Reduce long-term skin contact, and the attached coating can be washed with soap.

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.