Introduction:a thermosetting epoxy modified heavy-duty powder coatings specially designed for epoxy anti-corrosion coating steel, this product adopts imported two step method special epoxy, part functional epoxy, match up dedicated anticorrosive epoxy firming agent, unique compound design and practical by the authoritative department detection, has good reactivity, strong adhesion strength, good toughness and bending resistance, excellent chemical resistance, solvent resistance, cathodic disbonding resistance, impact resistance and other properties.
Feature:
1. Very good adhesion with the substrate.
2. Coating density, continuous, brightness, resistance to penetration, less funnelled
3. Coating with excellent cathodic disbonding resistance and high electrical insulation
4. Coating with high bond strength of concrete, strong bond stress.
5. Good toughness, no cracking for bending
6. Low melting temperature, high reactivity, high curing completion rate, good mechanical properties
7. Versatility, low powder consumption
8. Steel wire drawing in the powder coating can be reduced or avoided
Power Specification
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Test Items |
Technical Indicators |
Test Method |
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Appearance |
Even color, no caking |
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Colour |
As customer required |
visual |
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density(g/cm³) |
1.2-1.5 |
GB/T 4472 |
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30µm-50µm |
Laser laser particle size analyzer |
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Particle size distribution % |
150μm Sieve the powder |
≤3.0 |
GB/T 6554 |
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250μm Sieve the powder |
≤0.2 |
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≤ 0.6 |
GB/T 6554 |
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magnetic material content(%) |
≤ 0.002 |
GB/T 2482-86 |
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Gel time(s) |
200℃ ≤ 20S |
GB/T 6554 |
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Curing time(s) |
230℃ ≤ 60S |
GB/T 6554 |
Coating Specification
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Test Items |
Technical Indicators |
Test Method |
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Appearance |
smooth,uniform color, no bubble , no cracking and sinkhole, allow light crack |
visual |
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cathodic disbonding resistance |
≤2mm |
GB/T 25826-2010 |
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No visible holes, gaps, cracks, and visual defects |
GB/T 25826-2010 |
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pliability(40mm) |
no visible cracks, fracture, coating peel off |
GB/T 25826-2010 |
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Coating on steel bond strength is not less than 85% of uncoated steel |
GB50152 |
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No coating material fracture |
GB/T 25826-2010 |
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Resistance to chloride penetration |
<1×10-4M |
GB/T 25826-2010 |
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Chemical resistance |
No softening, no bubbles, good adhesion and no pores, no sag |
GB/T 25826-2010 |
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≤100 mg |
GB/T 1768-1979 |
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≤3mm |
GB/T 25826-2010 |
Carried Standard:JG 3042-1997; GB/T 25826-2010
Application Area: Can be widely used in Bridges, ports, airports, buildings, basements, high-speed rail, etc.
Applicable process:Electrostatic Coating
Notes:
1. Steel surface scale remove clean, reveal metal color; Steel surface roughness handling quality standard, appropriate for 50-70 - mm; Derusting grade level Sa2 1/2 (GB/T8923, no chloride attached on steel surface. Preheating: temperature should be controlled in 220-245 ℃.)
2. Product should be stored in ventilated, dry, indoor temperature below 27 ℃, away from heat, corrosive chemicals and chemical solvents, avoid bright light, the maximum stack height should not exceed 4 layers, avoid prolonged pressure, ensure airtight box. In case the clot and damp affects the fluidization performance.
3. As the product has high reactivity, it is recommended that storage period for 27 ℃ under 3 months for the best. Exceed shelf life, should be test its performance first.
