A two component, high solids, zinc phosphate epoxy primer and building coat
Introduction
Two-component, high solid, zinc phosphate epoxy primer composed of epoxy resin, zinc phosphate anti-rust pigment, solvent, auxiliary agent and polyamide curing agent.
Features
• Epoxy primer or build coat in protective coating systems
• Excellent corrosion resistance in atmospheric exposure
• Cures at temperatures down to -5°C (23°F)
• Max. over coating interval is not limited
• Speed curing in steel fabrication
• Wide application range
Recommended use
Multi-purpose epoxy primer or intermediate paint for steel structure and galvanized steel in various atmospheric environments.
Suitable for new steel or repair purposes.
Application Instructions
Applicable Substrate and Surface Treatments:
Steel: blast cleaned to Sa2.5 (ISO8501-1), blasting profile Rz35μm~75μm (ISO8503-1)
Applicable and Curing:
Ambient environment temperature should be from minus 5℃ to 38℃, the relative air humidity should not be more than 85%.
Substrate temperature during application and curing should be 3℃ above dew point.
Pot life
| 5℃ | 15℃ | 25℃ | 35℃ |
| 5 hrs. | 4 hrs. | 2 hrs. | 1.5hrs |
Application methods
Airless spray/air spray
Brush and roller coating are only recommended for stripe coat, small area coating or touch up.
Application Parameters
| Application method |
Unit |
Airless spray |
Air spray |
Brush/Roller |
| Nozzle orifice |
mm |
0.43～0.53 |
1.8～2.2 |
—— |
| Nozzle pressure |
kg/cm2 |
150～200 |
3～4 |
—— |
| Thinner |
% |
0～10 |
10～20 |
5～10 |
Drying & Curing
| Substrate surfacetemperature |
5℃ |
15℃ |
25℃ |
35℃ |
| Surface-dry |
4hrs |
2hrs |
1hr |
30mins |
| Through-dry |
24hrs |
16hrs |
12hrs |
8hrs |
| Overcoating Interval |
20hrs |
16hrs |
12hrs |
8hrs |
| Overcoating condition | Before applying the consequent coat, the surface should be clean, dry and free of zinc salts and pollutants | |||
Preceding & Consequent coating
Preceding coat: Ferrous metal, hot-dip, thermal spray with the surface treatment of ISO-Sa2½ or St3. Approved shop primer, zinc rich primer, epoxy primer….
Consequent coat：Epoxy, polyurethane, fluorocarbon...etc.
Not compatible with alkyd paints.
Packing & Storage
Pack size：base 25kg，curing agent 2.5kg
Flashpoint：>25℃（Mixture）
Storage ：Must be stored in accordance with local governmental regulations. The storage environment should be dry, cool, well-ventilated and away from heat and fire sources. The pail must be kept tightly closed.
