EPCT380-1/EPCT380-2 Coal Tar Epoxy Primer/Coal Tar Epoxy Topcoat is an epoxy coating used as a primer. Application is possible at temperatures as low as -20 °C; low-temperature curing produces a tough film with good corrosion resistance and good resistance to seawater, crude oil and fuel oil. Topcoat: black, two-can pack, Component B is a hardener common to both primer and topcoat. Parameters on this page: dry film thickness 125 µm, theoretical spreading rate 4.57 m²/kg, number of components: two-component.
Parameter source: OSAKA manufacturer's Technical Data Sheet (TDS) "EPCT380-1/EPCT380-2 Coal Tar Epoxy Primer/Coal Tar Epoxy Topcoat"; 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 | 80% |
|---|---|
| Dry Film Thickness | 125 µm |
| Theoretical Spreading Rate | 4.57 m²/kg |
| VOC | 172 g/L |
| Density / Specific Gravity | Approx. 1.4 kg/L |
| Number of Components | Two-component |
| Thinner | OUP 103, recommended addition 3%–5% |
| Mixing Ratio | Component A : Component B = 18:4 (by weight) |
| Packaging Specifications | Component A: 18 kg in a 20 L drum; Component B: 4 kg in a 4 L drum |
High-build coating, primer: red-brown; topcoat: black, two-can pack, Component B is a hardener common to both primer and topcoat.
May be used for the long-term protection of steel plates in severely corrosive environments, such as immersed areas including hull bottoms, crude oil tanks, fuel oil tanks and ballast tanks. Application is possible down to -20 °C; low-temperature curing forms a corrosion-resistant, tough film with good resistance to seawater, crude oil and fuel oil.
| Volume Solids | 80% |
|---|---|
| Dry Film Thickness | 125 µm corresponds to 156 µm wet film thickness |
| Theoretical Spreading Rate | 4.57 m²/kg |
| Practical Spreading Rate | Allowing a suitable loss |
| Volatile organic compound content | 172 g/L |
| Mixing Ratio | Component A : Component B = 18:4 (by weight) |
|---|---|
| Airless spray | Recommended: 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 | ||
| 5 °C: 12 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 | 48 | 48 h | 7 days |
| 23°C | 2 | 24 | 24 h | 3 days |
| 35°C | 1 | 12 | 12 h | 1.5 days |
| Storage | Store in a cool, dry environment |
|---|---|
| Shelf life | 1 year |
| Packaging Specifications | Component A: 18 kg in a 20 L drum; Component B: 4 kg in a 4 L drum |
| Flash Point | 22 °C after mixing |
| density | Approx. 1.4 kg/L |
The surface shall be clean and dry before application. Abrasive blast cleaning to Sa2.5 of ISO 8501:2007, or hand or power tool cleaning to St3.
Suggested number of coats: one coat each of primer and topcoat by high-pressure airless spray, reaching a dry film thickness of 250 µm. Compatible previous coatings: epoxy zinc-rich shop primer, epoxy zinc powder primer, inorganic zinc silicate primer, epoxy micaceous iron oxide anticorrosive paint; the product can also be applied directly to steel surfaces prepared to Sa2.5.
Data is subject to the manufacturer's latest version; in all cases the manufacturer's latest TDS prevails.
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.
