Epoxy primer
1 PRODUCT DESCRIPTION
The paint is made of modified epoxy ester resin, anti-rust pigment, filler, additives and solvent.
2 RECOMMENDED USE
Applicable as a primer for steel equipment, steel structures and pipelines, and for coating engineering vehicles, tower cranes and similar equipment.
3 FEATURES
- Single-component product with no construction time limit.
- Good adhesion and compatibility.
- Good application performance.
- Good oil, solvent and chemical resistance.
4 COMPLIED STANDARDS
Complies with HG/T 2239-2012, Epoxy Ester Primer.
5 PHYSICAL PROPERTIES
| Color | Iron oxide red |
| Gloss | No requirement |
| Mixing Ratio | Single component |
| Specific Gravity | 1.30 ± 0.10 g/cm³ |
| Volume Solids | 40 ± 2% |
| Weight Solids | 61 ± 2% |
| Film Thickness | Dry: 30–50 microns/coat; Wet: 75–125 microns/coat |
| Theoretical Coverage | 0.163 kg/m² at 50 microns |
Practical coverage varies with surface condition, environment and application method.
6 APPLICATION
Application Temperature: 5–40°C
Application Conditions: Relative humidity below 85%. Substrate temperature at least 3°C above the dew point.
Pot Life: Not applicable to a single-component product.
Application Methods: Airless spray, air spray, brush and roller.
| Method | Nozzle | Pressure | Thinning Ratio |
| Airless Spray | 0.33–0.53 mm | 10–15 MPa | 10–20% by weight |
| Air Spray | 2–3 mm | 0.3–0.6 MPa | 20–30% by weight |
| Brush/Roller | — | — | 10–20% by volume |
Thinner: Epoxy ester thinner.
Drying Time and Overcoating Interval
| Temperature | 5°C | 20°C | 30°C |
| Dry to Touch | 1 h | 30 min | 20 min |
| Dry Hard | 10 h | 6 h | 4 h |
| Minimum Interval | 24 h | 10 h | 8 h |
| Maximum Interval | — | — | — |
Applied Substrate: Bare steel.
Coating System: Acrylic polyurethane topcoat or the PUNTIUM recommended coating system.
7 SURFACE PREPARATION
- Remove salts and water-soluble contaminants with fresh water.
- Remove oil and grease using suitable detergent or solvent in accordance with SSPC-SP 1.
- Abrasive blast to ISO Sa 2½ / SSPC-SP 10 or better.
- All surfaces must be clean, dry and dust-free before coating.
8 STORAGE
Store in dry, cool conditions away from heat and ignition. Keep containers tightly closed.
Shelf Life: 12 months at 25°C, subject to re-inspection thereafter.
9 CAUTIONS
SAFETY PRECAUTIONS
- Avoid skin and eye contact.
- Wash skin with warm water and/or suitable cleanser. Flush eyes with plenty of water and seek immediate medical attention.
- Ensure good ventilation and avoid inhaling spray mist or vapour.
- Comply with relevant national regulations and consult the SDS.
DISCLAIMER
The information provided constitutes the most comprehensive and accurate data currently available. Operating conditions are beyond our control, so it does not constitute a warranty and is intended solely to assist product selection. Confirm that the latest TDS is used before application.
PREPARATION DATE: 2025-08-04
REVISION DATE: 2026-02-04
