EPE331 Epoxy High-build Topcoat is an epoxy coating used as a topcoat. It can be used for long-term protection of steel surfaces in areas subject to long-term immersion in liquids such as water and seawater, including storage tanks and tank interior walls, pipe interior walls, and underground and underwater structures. Available in various colours, semi-gloss or gloss, high-build two-component chemically cured epoxy coating. Parameters on this page: dry film thickness 120 µm, theoretical spreading rate 4.81 m²/kg, number of components two-component.
Parameter source: OSAKA original technical data sheet (TDS) \"EPE331 Epoxy High-build Topcoat\"; values such as spreading rate are converted from TDS parameters and are for 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 | 75% |
|---|---|
| Dry Film Thickness | 120 µm |
| Theoretical Spreading Rate | 4.81 m²/kg |
| VOC | 215 g/L |
| Density / Specific Gravity | Approx. 1.30 kg/L |
| Number of Components | Two-component |
| Flash Point | 27°C |
| Thinner | OUP 103, recommended addition 3%–5% |
| Mixing Ratio | Component A : Component B = 5:1 (by weight) |
Various colours, semi-gloss or gloss, high-build two-component chemically cured epoxy coating.
The coating film has high anti-corrosion performance and good chemical resistance, water resistance, moisture resistance and oil resistance. It can be used for long-term protection of steel surfaces in areas subject to long-term immersion in liquids such as water and seawater, including storage tanks and tank interior walls, pipe interior walls, and underground and underwater structures.
| Volume Solids | 75% |
|---|---|
| Dry Film Thickness | 120 µm corresponds to 160 µm wet film thickness |
| Theoretical Spreading Rate | 4.81 m²/kg |
| Practical Spreading Rate | Allowing a suitable loss |
| Volatile organic compound content | 215 g/L |
| Mixing Ratio | Component A : Component B = 5:1 (by weight) |
|---|---|
| Airless spray | Recommended: nozzle tip size 0.53–0.65 mm; fluid pressure >19.7 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 | 35 °C – 2 h, 23 °C – 4 h, 5 °C – 8 h |
| Drying Time | ||||
| Substrate Temperature | Touch dry (h) | Hard dry (h) | Recoat Interval | |
| Minimum | Maximum | |||
| 5°C | 4 | 36 | 36 h | 7 days |
| 23°C | 2 | 24 | 24 h | 7 days |
| 35°C | 0.5 | 18 | 18 h | 7 days |
| Storage | Store in a cool, dry environment |
|---|---|
| Shelf life | 1 year |
| Packaging Specifications | Component A: 20 kg in a 20 L container; Component B: 4 kg in a 4 L container |
| Flash Point | 27°C |
| density | Approx. 1.30 kg/L |
For application on surfaces already coated with primer or intermediate coat; the surface shall be kept clean, dry and free from oil, dust and water.
Previous coat: epoxy micaceous iron oxide anti-corrosive primer, epoxy glass flake anti-corrosive primer. Recommended number of coats: one to two coats by high-pressure airless spray, dry film thickness 120 µm.
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.
