PTO-ZNG10
1 PRODUCT DESCRIPTION
A zinc-rich primer designed as an alternative to hot-dip galvanizing.
2 RECOMMENDED USE
Designed for long-term corrosion protection of steel structures, bridges and other metal components, especially large and complex structures where hot-dip galvanizing is impractical or costly and outdoor steel facilities with demanding corrosion resistance and difficult maintenance. It may be used alone as a primer or combined with a topcoat to form a composite protection system.
3 FEATURES
- Excellent corrosion resistance and high-build application.
- Single-component high-zinc coating with up to 95% zinc powder in the dry film.
- Alternative to galvanizing with long-term protection.
- Excellent wear and impact resistance.
- Fast drying; the next coat may be applied after approximately 2 hours at room temperature.
4 COMPLIED STANDARDS
Complies with HG/T 4845-2015, Cold Sprayed Zinc Coatings.
5 PHYSICAL PROPERTIES
| Color | Gray |
| Gloss | No requirement |
| Mixing Ratio | Single component |
| Specific Gravity | 2.70 ± 0.10 g/cm³ |
| Volume Solids | 50 ± 2% |
| Weight Solids | 83 ± 2% |
| Film Thickness | Dry: 40–80 microns/coat; Wet: 80–160 microns/coat |
| Theoretical Coverage | 0.270 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 | 0.33–0.43 mm | ≥15 MPa | 0–5% by volume |
| Air Spray | 1.5–2.0 mm | 0.3–0.4 MPa | 0–5% by volume |
| Brush/Roller | — | — | 5–10% by volume |
Thinner: Cold spray zinc thinner.
Drying Time and Overcoating Interval
| Temperature | 5°C | 10°C | 20°C | 30°C |
| Dry to Touch | 1 h | 0.5 h | 20 min | 10 min |
| Dry Hard | 1.5 h | 1 h | 1 h | 0.5 h |
| Minimum Interval | 8 h | 6 h | 2 h | 2 h |
| Maximum Interval | — | — | — | — |
Applied Substrate: Bare steel.
Coating System: Sealer coat or the PUNTIUM recommended coating system.
7 SURFACE PREPARATION
- Remove salts and water-soluble contaminants with fresh water.
- Remove oil and grease with 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.
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: 2018-08-16
REVISION DATE: 2026-02-04
