EPP311 Epoxy Rust-tolerant Primer is an epoxy coating used as a primer. A low-surface-preparation primer that can be applied directly to lightly rusted steel surfaces and is also suitable for the corrosion protection of components that are difficult to derust thoroughly, such as the surface repair of old coatings on various steel structures. Two-component, grey or iron red, composed of epoxy resin, rust converter, rust stabilizer and active agents. Parameters on this page: dry film thickness 40–80 µm, theoretical spreading rate 7.58 m²/kg, number of components two-component.
Parameter source: OSAKA original technical data sheet (TDS) "EPP311 Epoxy Rust-tolerant 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 | 55% |
|---|---|
| Dry Film Thickness | 40–80 µm |
| Theoretical Spreading Rate | 7.58 m²/kg |
| VOC | 387 g/L |
| Density / Specific Gravity | Approx. 1.45 kg/L |
| Number of Components | Two-component |
| Flash Point | 23°C |
| Thinner | OUP 103, recommended addition 3%–5% |
| Mixing Ratio | Component A : Component B = 10:1 (by weight) |
Two-component, grey or iron red, composed of epoxy resin, rust converter, rust stabilizer and active agents.
A low-surface-preparation primer that can be applied directly to lightly rusted steel surfaces and is also suitable for the corrosion protection of components that are difficult to derust thoroughly, such as the surface repair of old coatings on various steel structures.
| Volume Solids | 55% |
|---|---|
| Dry Film Thickness | 40–80 µm |
| Theoretical Spreading Rate | 7.58 m²/kg, based on a dry film thickness of 50 µm. |
| Practical Spreading Rate | Allowing a suitable loss |
| Volatile organic compound content | 387 g/L |
| Mixing Ratio | Component A : Component B = 10:1 (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 | 5 °C–8 h; 23 °C–6 h; 35 °C–4 h |
| Drying Time | ||||
| Substrate Temperature | Touch dry (h) | Hard dry (h) | Recoat Interval | |
| Minimum | Maximum | |||
| 5°C | 4 | 36 | 36 h | 14 days |
| 23°C | 2 | 24 | 24 h | 14 days |
| 35°C | 1 | 16 | 16 h | 14 days |
| Storage | Store in a cool, dry environment |
|---|---|
| Shelf life | 1 year |
| Packaging Specifications | Component A: 25 kg in a 20 L container; Component B: 2.5 kg in a 4 L container |
| Flash Point | 23°C |
| density | Approx. 1.45 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.
The product cures slowly below 5 °C; for good results, the substrate temperature shall be above 5 °C and at least 3 °C above the dew point.
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.
