EPP303 Epoxy Zinc Phosphate Primer is an epoxy paint for use as a primer. A multi-purpose spray primer with low-temperature curing, short recoat interval, excellent salt spray resistance and long-term corrosion protection, widely used for corrosion protection of steel structures in port machinery, construction machinery, petrochemical and pipeline fields. Two-pack zinc phosphate epoxy resin primer with good abrasion resistance, resistant to damage during handling, curing at temperatures as low as 0°C. Parameters on this page: dry film thickness 75 µm, theoretical spreading rate 6.62 m²/kg, number of components two-component.
Parameter source: OSAKA manufacturer's Technical Data Sheet (TDS) "EPP303 Epoxy Zinc Phosphate Primer"; values such as spreading rate are converted from TDS parameters and are for product selection reference only.
The above content is compiled from the manufacturer's datasheet and this site's parameter tables. For selection, coating systems and lead times, pleaseContact Usfor confirmation.
This page carries the full TDS for this product, translated from the manufacturer's original document. No file download is needed; for an original-language copy, send an enquiry.
| Volume Solids | 71% |
|---|---|
| Dry Film Thickness | 75 µm |
| Theoretical Spreading Rate | 6.62 m²/kg |
| VOC | 249.4 g/L |
| Density / Specific Gravity | Approx. 1.43 kg/L |
| Number of Components | Two-component |
| Thinner | OUP 103, recommended addition 3%–5% |
| Mixing Ratio | Component A : Component B = 6:1 (by weight) |
| Pot Life | 23 °C: 4 h |
Two-pack zinc phosphate epoxy resin primer, good abrasion resistance, resistant to damage during handling, curing at temperatures as low as 0°C.
Multi-purpose spray primer, low-temperature curing, short recoat interval, excellent salt spray resistance, long-term corrosion protection, widely used for corrosion protection of steel structures in port machinery, construction machinery, petrochemical and pipeline fields.
| Volume Solids | 71% |
|---|---|
| Dry Film Thickness | 75 µm |
| Theoretical Spreading Rate | 6.62 m²/kg |
| Practical Spreading Rate | Allowing a suitable loss |
| Volatile organic compound content | 249.4 g/L |
| Mixing Ratio | Component A : Component B = 6:1 (by weight) |
|---|---|
| Airless spray | Recommended: nozzle tip size 0.43–0.53 mm; fluid pressure ≥17.6 MPa |
| Brush or roller | Recommended |
| Conventional spray | Suitable but not recommended. |
| Thinner | OUP 103, recommended addition 3%–5%. |
| Paint equipment cleaner | OUP 103 |
| Pot life | 23 °C: 4 h |
| Drying Time | ||||
| Substrate Temperature | Touch dry (h) | Hard dry (h) | Recoat Interval | |
| Minimum | Maximum | |||
| 5°C | 2 | 24 | 24 h | 14 days |
| 23°C | 1 | 12 | 12 h | 14 days |
| 35°C | 0.5 | 6 | 6 h | 14 days |
| Storage | Store in a cool, dry environment |
|---|---|
| Shelf life | 1 year |
| Packaging Specifications | Part A: 24 kg packed in a 20 L container; Part B: 4 kg packed in a 4 L container |
| Flash Point | Above 23 °C (mixture) |
| density | Approx. 1.43 kg/L |
Steel surfaces: abrasive blast clean to Sa 2.5 (ISO 8501:2007) or clean by hand or power tools to St 3. Keep clean and dry.
Below 0 °C, the curing time may be extended; take care that the curing temperature is above freezing and the surface is free of ice.
Information is subject to the manufacturer's latest version; the manufacturer's latest TDS prevails.
The technical parameters on this page are taken from the product's original manufacturer technical datasheet, the copyright of which belongs to the manufacturer. If a rights holder considers the presentation inappropriate, contact us for verification and handling.
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
Packaging specifications and batch lead times are subject to actual availability. PleaseContact Uscontact us for project-based calculation.
