Epoxy Anti-Corrosion Powder Coating for Pipeline Internal Coating
powder Coating 2025-05-23
Product Introduction:
This product is formulated using special epoxy resin and functional curing agents. It features high reactivity, strong adhesion, high cross-link density, and excellent resistance to chemicals, solvents, cathodic disbondment, as well as superior flexibility and impact resistance.
Product Usage:
Municipal, water supply, drainage, sewage, circulating water, chemical, and power plant pipelines.
Product Features:
- Excellent adhesion to the substrate.
- Good leveling and high gloss on the coating surface.
- Strong resistance to permeation and corrosion.
- High surface hardness and dense coating.
- Superior high-temperature cathodic disbondment resistance.
- Good mechanical properties and extremely strong flexibility.
- Low melting temperature, high reactivity, and high curing completion rate.
Powder Performance:
| Property | Specification | Notes |
|---|---|---|
| Adhesion | Excellent | |
| Leveling | Good, high gloss | |
| Corrosion Resistance | Superior | |
| Surface Hardness | High | |
| Cathodic Disbondment Resistance | Excellent at high temperatures | |
| Flexibility | Extremely strong | |
| Temperature Resistance | Good performance in high and low temperatures |
Curing Conditions:
| Property | Specification | Notes |
|---|---|---|
| Temperature | 200-230°C for 3-1.5 minutes (medium-frequency heating) | Deviations may affect performance |
Application Parameters:
| Parameter | Specification | Notes |
|---|---|---|
| Applicable Equipment | Frictional charging spray, corona electrostatic spray, dip coating, roll coating | |
| Film Thickness | 150-450um | Adjustable according to workpiece requirements |
Health and Safety:
| Property | Specification | Notes |
|---|---|---|
| Toxicity | Non-toxic | |
| Flammability | Non-flammable | |
| Regulation | GB15607-1995 | Coating operation safety regulations |
Precautions:
| Item | Specification | Notes |
|---|---|---|
| Outdoor Use | Not recommended | May cause fading and chalking |
| Surface Preparation | Oil-free, water-free, surface treatment to Sa21/2 level (GB/T8923), anchor pattern depth 40-100um, clean surface from dust and abrasives | |
| Preheating | Temperature controlled between 180-230°C | |
| Storage | Ventilated, dry, below 30°C, away from heat sources, corrosive chemicals, and solvents, avoid strong light, maximum stack height 5 layers, avoid long-term pressure, keep packaging sealed | |
| Curing Temperature | Preheat steel pipe surface to above 200°C for better curing completion rate |
Compliance Standards:
SY/T 0442-97 “Technical Standard for Internal Coating of Steel Pipelines with Fusion-Bonded Epoxy Powder”
