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Polyester-Epoxy Powder Coating

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Polyester-Epoxy Powder Coating Specification

Chemical Name
Polyester-Epoxy Resin Blend

CAS No
N/A (mixture of components)

Type
Thermosetting Powder Coating

Standard
ASTM D 3359 / ISO 8130

Grade
Industrial Grade

Usage
Protective and Decorative Coating for Metals

Appearance
Smooth Metallic Finish

Physical Form
Powder

Pack Size
20 kg

Pack Type
HDPE Bag or Drum

Impact Resistance
Passes 50 kg.cm (Direct & Reverse)

Storage Stability
12 Months (Below 25C, Dry Conditions)

Gloss Level
Available in Matt, Semi-Gloss, and Gloss Finishes

Application Method
Electrostatic Spray

Curing Time
10-15 Minutes

Film Thickness Range
60-90 m

Adhesion
Excellent (Cross Hatch 0/1 mm Loss)

Curing Temperature
180C to 200C

Salt Spray Resistance
>500 Hours

Color
Silver Grey, Custom Colors Available

Polyester-Epoxy Powder Coating About

This series of products is a thermosetting powder coating made from a mixture of saturated polyester resin, corresponding curing agents, pigments, fillers, and other specialized additives. It features excellent weather resistance, UV resistance, and thermal stability.

Product Usage:
Suitable for coating and protection of office furniture, equipment, electrical devices, home appliances, sports equipment, automotive parts, architectural windows and doors, aluminum profiles, electrical cabinets, boxes, and other metal surfaces.

Powder Performance:

Property	Specification	Notes
Gloss	Referenced to GB1734-79 standard	Measured with a 60 glossmeter
Mechanical Properties	Referenced to GB1727-92 standard	Film thickness 60-80um, tested under laboratory conditions
Corrosion Resistance	Tested on oil-free, rust-free, zinc-phosphated panels	Film thickness 100-120um, tested under laboratory conditions
Curing Conditions	Referenced to workpiece temperature	Deviations in temperature may affect performance

Coating Appearance:

Property	Specification	Notes
Gloss	Referenced to GB1734-79 standard	Measured with a 60 glossmeter

Mechanical Properties:

Property	Specification	Notes
Standard	GB1727-92	Film thickness 60-80um, tested under laboratory conditions

Corrosion Resistance:

Property	Specification	Notes
Preparation	Oil-free, rust-free, zinc-phosphated panels	Film thickness 100-120um, tested under laboratory conditions

Curing Conditions:

Property	Specification	Notes
Temperature	Referenced to workpiece temperature	Deviations may affect performance

Application Parameters:

Parameter	Specification	Notes
Applicable Equipment	Frictional charging spray, corona electrostatic spray, electrostatic fluidized bed
Film Thickness	50-150um	Adjustable according to workpiece requirements
Coverage Rate	8-11/kg	For a film thickness of 60um, depending on type and workpiece requirements
Calculation Formula	Specific gravity film thickness = grams per square meter

Storage Period:

Condition	Specification	Notes
Temperature	Below 30C	Dry conditions
Duration	12 months
Re-sealing	Immediately after use	To prevent moisture absorption
Packaging	20kg paper boxes with an inner plastic liner	Minimum packaging 3kg

Health and Safety:

Property	Specification	Notes
Toxicity	Non-toxic
Flammability	Non-flammable
Regulation	GB15607-1995	Coating operation safety regulations

Precautions:

Item	Specification	Notes
Mixing Powders	Do not mix different types
Outdoor Use	Not recommended	Long-term exposure may cause fading and chalking
Enhanced Weather Resistance	Use companys outdoor-specific coatings

Versatile Protective and Decorative Solution

This polyester-epoxy powder coating is engineered for industrial use where durability and aesthetics are paramount. It not only shields metal from the elements but also elevates the visual appeal with a smooth metallic finish. Custom color matching is available to suit specific project requirements.

Efficient Application and Curing Process

Designed for convenience, our powder coating is applied via electrostatic spray, ensuring an even coat and minimizing waste. Curing is swift and effective, requiring only 10-15 minutes at temperatures between 180C and 200C, streamlining production cycles and enhancing efficiency.

Reliable Performance in Challenging Environments

Tested with excellent results in salt spray resistance (>500 hours) and impact tests, this product is your solution for robust performance. Adhering to industry standards, it provides long-lasting protection and reduces the frequency of maintenance required for coated metal items.

FAQ's of Polyester-Epoxy Powder Coating:

Q: How is the polyester-epoxy powder coating applied to metal surfaces?

A: The coating is best applied using an electrostatic spray technique. The powder is charged and sprayed onto the metal substrate, ensuring a uniform layer, which is then cured in an oven at 180C to 200C for 10-15 minutes.

Q: What benefits does this powder coating offer compared to liquid paints?

A: This powder coating delivers a smoother, highly durable finish with excellent adhesion and impact resistance. It is more environmentally friendly due to lower VOC emissions, and provides consistent coverage without runs or sags typical of liquid paints.

Q: When should I use polyester-epoxy powder coating instead of pure polyester or epoxy powder?

A: Choose polyester-epoxy blends when both protective qualities and decorative appeal are needed. They offer a balance of chemical resistance, mechanical strength, and attractive finishes, making them ideal for industrial metal protection.

Q: Where is this powder coating commonly used?

A: This coating is widely used on industrial metal products such as machinery, enclosures, automotive parts, and architectural metals, where both corrosion protection and an appealing finish are required.

Q: What is the process for curing after powder coating application?

A: After spraying the powder onto the metal, the coated object must be cured in a preheated oven at temperatures between 180C and 200C. The process takes 10-15 minutes, resulting in a hard, durable film.

Q: Can the gloss level or color be customized for my project?

A: Yes, this powder coating is available in matt, semi-gloss, and gloss finishes, and can be matched to custom colors, including the popular Silver Grey, to meet your design specifications.

Q: How should the powder be stored for maximum shelf life?

A: To ensure a shelf life of up to 12 months, store the powder in a dry area at temperatures below 25C, protected from direct sunlight and moisture, using sealed HDPE bags or drums.

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