Product Introduction:
This product is meticulously designed using epoxy resin and curing agents. It features high reactivity and %%excellent %% adhesion, high cross-linking density, and the coating film exhibits %% outstanding %% resistance tochemicals, solvents, cathodic disbondment, along with excellent flexibility and impact resistance.ConsultingServicesstrong adhesion, high cross-linking density, and the coating film possessesConsulting Servicesoutstandingchemical resistance, solvent resistance, cathodic disbondment resistance, excellent flexibility, impact resistance, andother properties.
Product Use:
Suitable for anti-corrosion in oil, gas, municipal water supply, drainage, sewage, circulating water chemical pipelines,and also serves as the base layer for anti-corrosion in insulation and submarine weight applications.
Product Features:
1. Excellent adhesion with the substrateConsulting Servicesbonding strength;2. The coating film exhibits excellent surface leveling and moderate gloss;3. FeaturesConsulting Servicespermeation resistance and corrosion resistance;
4. High surface hardness and strong coating density, with good resistance to plant root penetration;5. The coating exhibits excellent resistance to high-temperature cathodic disbondment;6. Low melting temperature, high reactivity, and high curing completion rate.
Powder Properties:
Powder Coating Performance Parameters
experimental project | technical indicators | remark |
appearance | Uniform color, no lumps | visual inspectio |
color | According to customer requirements | colorimeter |
Density（g/cm³） | 1.3~1.5 | GB/T 4472 |
particle size distribution | 150um sieve residue ≤ 3.0 250um sieve residue ≤ 0.2 | GB/T 6554-1986 |
Non volatile matter content (%) | ≤99.4 | GB/T 6554-1986 |
Magnetic content (%) | ≤0.002 | GB/T 2482-1986 |
Gelation time (s) | ≤100s (180°C) ≤60s (200°C) ≤30s (230°C) | GB/T 6554-1986 |
Performance parameters of cured powder coating film
experimental project | technical indicators | remark |
appearance | Flat, uniform color, no bubbles or openings Cracks and shrinkage, mild orange peel allowed | visual inspection |
Adhesion (grade) | 1~3 | SY/T 0315-2005 |
Resistant to cathodic stripping for 24 hours (mm) | ≤6.5 | SY/T 0315-2005 |
Resistant to cathodic peeling for 28 days (mm) | ≤8 | SY/T 0315-2005 |
Sectional porosity | 1~4 | SY/T 0315-2005 |
Porosity of bonding surface | 1~4 | SY/T 0315-2005 |
Bending resistance (3 °) | crack-free | SY/T 0315-2005 |
volume resistivity | ≤1×10¹³ | GB/T 1410 |
Electrical strength (MV/m) Resistance to 1.5J impact | ≥30 | GB/T 1408.1 |
strength (-30 °) | no leakage points | SY/T 0315-2005 |
chemical corrosion resistance | qualified | SY/T 0315-2005 |
Wear resistance (sanding method) | ≤3 | SY/T 0315-2005 |
Salt spray test (1000h) | No change in coating film | GB/T 1771-1991 |
Execution Standard:
SY/T0315-2005 "Technical Specification for Single Layer Fusion Bonded Epoxy Coating on Steel Pipelines"
Curing Conditions:
Curing Temperature: 200~ 230°C/3 ~ 1.5min (Medium Frequency Heating Curing)Note: The recommended curing conditions refer to the workpiece temperature. Deviations in temperature will affectthe coating's performance or prevent it from being fully realized.
Construction Parameters:
1.Applicable Equipment--Friction charging spraying, corona electrostatic spraying2.Film Thickness- -Adjustable between 250-450um according to workpiece requirements
Shelf Life:
1. This product should be stored under dry conditions below 30°C for 6 months;2. After use, the coating must be immediately resealed to prevent moisture from affecting the powder's performance;3. Packaging: 20kg cardboard box with inner plastic bag.
Health and Safety:
1. This product is non-toxic and non-flammable, but please comply with the GB15607-1995 safety regulations forcoating operations during use.
Precautions:
1. Different types of powders cannot be mixed for use.
2. Not recommended for outdoor use; prolonged exposure to outdoor conditions may cause fading and chalking
3. The steel pipe surface should be free of oil and moisture, with surface treatment quality reaching Sa21/2 grade(GB/T8923). The anchor pattern depth should be 40~100um, and any dust or abrasive attached to the steel pipesurface must be thoroughly cleaned.
4. Preheating: Temperature should be controlled between 180~230°C.
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