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Single-Layer Epoxy Anti-Corrosion Powder Coating (External Coating)

Product Introduction:This product is formulated using epoxy resin, functional curing agents, an

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Content

Product Introduction:

This product is formulated using epoxy resin, functional curing agents, and a meticulous design. It features high reactivity, strong adhesion, high cross-link density, and excellent resistance to chemicals, solvents, and cathodic disbondment. The coating also offers superior flexibility, impact resistance, and other performance characteristics.

Product Features:

Excellent adhesion to the substrate.

Smooth surface with high gloss.

Strong resistance to permeation and corrosion.

High surface hardness and dense coating, providing good resistance to plant root penetration.

Excellent resistance to high-temperature cathodic disbondment.

Low melting temperature, high reactivity, and high curing completion rate.

Powder Coating Performance Parameters:

ItemQuality IndicatorTest Method
AppearanceUniform color, no lumpsVisual inspection
ColorAs per customer requirements—————
Density (g/cm³)1.3-1.5GB/T 4472
Non-Volatile Content (%)≥ 99.4GB/T 6554-1986
Magnetic Substance Content (%)≤ 0.002GB/T 2482-1986

Cured Powder Coating Performance Parameters:

No.Test ItemTechnical IndicatorTest Method
1AppearanceSmooth, uniform color, no bubbles, cracks, or pinholes; slight orange peel allowedVisual inspection
2Adhesion (Grade)1-3SY/T 0315-2005
3Cathodic Disbondment Resistance (24h) (mm)≤ 6.5SY/T 0315-2005

Cathodic Disbondment Resistance (28d) (mm)≤ 8SY/T 0315-2005

Cross-Section Porosity1-4SY/T 0315-2005

Bonding Surface Porosity1-4SY/T 0315-2005
4Flexibility (3°)No cracksSY/T 0315-2005

Volume Resistivity≥ 1×10¹³GB/T 1410
5Electrical Strength (MV/m)≥ 30GB/T 1408.1
6Impact Resistance (1.5J at -30°C)No leakageSY/T 0315-2005

Chemical ResistanceQualifiedSY/T 0315-2005
8Abrasion Resistance (falling sand method)≥ 3SY/T 0315-2005
9Salt Spray Test (1000h)No change in coatingGB/T 1771-1991

Compliance Standard:

SY/T 0315-2005

Application Fields:

Municipal, water supply, drainage, sewage, circulating water, chemical, power, and other pipeline applications.

Application Process:

Electrostatic spraying.

Precautions:

The steel pipe surface should be free of oil and moisture; the surface treatment quality should reach Sa2 1/2 level (GB/T 8923); the anchor pattern depth should be 50-90 mm; dust and abrasives on the steel pipe surface should be blown clean; preheating temperature should be controlled between 180-230°C.

The product should be stored in a well-ventilated, dry indoor environment with a temperature below 30°C, away from heat sources, corrosive chemicals, and chemical solvents, and protected from strong light exposure; the stacking height should not exceed four layers; avoid long-term pressure, ensure the packaging box is sealed to prevent caking and moisture, which can affect fluidization performance.

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Disclaimer: The above content is for reference and communication only among industry insiders, and does not guarantee its accuracy or completeness. According to relevant laws and regulations and the regulations of this website, units or individuals who purchase related items should obtain valid qualifications and qualification conditions.


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