H46-07 Marine Oil Tank Epoxy Paint
Product Description
H46-07 Marine Oil Tank Epoxy Paint
Product Introduction:
H46-07 is a two‑pack, high‑build epoxy anticorrosive coating specifically engineered for the protection of internal oil tank surfaces. It delivers outstanding rust prevention and chemical resistance, making it suitable for both newbuilding projects and ongoing maintenance. The formulation is approved by CCS for crude oil tanks in accordance with IMO Res. MSC 288(87), ensuring compliance with international safety and performance standards. With a low VOC content of less than 180 g/L, it supports environmentally responsible application without compromising protective qualities.
The paint offers a high volume solids content of 85% ± 2%, which enables thick film builds with fewer coats. It dries to a glossy finish and exhibits excellent adhesion to properly prepared steel surfaces. Like all epoxy coatings, H46-07 may show some chalking when exposed to prolonged UV light, but this does not affect its anticorrosive performance inside tanks.
Intended Uses：
This coating is designed as a high‑performance barrier system for oil tanks. It is widely used in newbuilding construction, during repair and dry‑docking, as well as for on‑board maintenance, providing long‑term corrosion protection even in aggressive cargo environments.
Mixing And Application:
The product is supplied in a 3.4:1 (volume) / 7:1 (mass) mix ratio. No induction period is required. For large‑scale work, airless spray is the recommended method, using a tip size of 0.45–0.68 mm and an output pressure of at least 17 MPa. Brush or roller application is acceptable only for small touch‑up areas. Thinner (HX‑501) is generally not recommended; if absolutely necessary, it should not exceed 5% of the total volume. Equipment cleaning should be done with HX‑501.
Film Thickness & Theoretical Coverage:
| Parameter | Minimum | Standard | Maximum |
| Dry Film Thickness (DFT) | 100 μm | 160 μm | 320 μm |
| Wet Film Thickness (WFT) | 118 μm | 189 μm | 376 μm |
| Theoretical Coverage | 8.5 m²/L | 5.3 m²/L | 2.6 m²/L |
Drying & Overcoating Data：
| Parameter | -5℃ | 5℃ | 15℃ | 25℃ | 35℃ |
| Touch Dry | 4h | 2h | 1.5h | 1h | 45min |
| Hard Dry | 48h | 36h | 30h | 20h | 10h |
| Pot Life | 4h | 2h | 1h | 1h | 40min |
| Overcoating - Min | 48h | 36h | 30h | 20h | 10h |
| Overcoating - Max | 14d | 10d | 10d | 7d | 5d |
Surface Preparation:
Proper surface preparation is critical. All surfaces must be clean, dry, and free from oil, grease, and soluble contaminants (SSPC‑SP1). For newbuilding, blast cleaning to Sa2.5 (GB/T 8923.1‑2011) is required, with weld seams cleaned to St3 using power tools. Coating should be applied before oxidation occurs; otherwise, re‑blasting is necessary. For repair and on‑board maintenance, mechanically clean the area to P St3 or blast to P Sa2.5 (GB/T 8923.2‑2008), and abrade the surrounding edges to minimise overlap.
Application Limitations:
Curing is incomplete below ‑5°C; for best performance, ambient temperature should be above 5°C. Application should only proceed when relative humidity is below 85% and the substrate temperature is at least 3°C above the dew point. Avoid prolonged inhalation of solvent vapours and paint mist, and prevent skin/eye contact. Adequate ventilation and fire precautions must be maintained during use.
Storage And Packaging:
Store in a cool, dry, well‑ventilated area, away from direct sunlight, heat sources, and open flames. Containers must remain tightly closed. Shelf life is a minimum of 12 months at 25°C (subject to re‑inspection). Packaging: Part A – 30 kg / 15.5 L in a 20 L container; Part B – 4.3 kg / 4.5 L in a 6 L container. Flash point for Part A, Part B, and the mixed paint is all above 31°C.