Epoxy coal tar bitumen anti-corrosion coating (2K) for buried pipelines and wet-dry service.
Buried pipelines, tank bottoms, submerged structures.
Mix ratio 7:1; recoat 12 h–7 d.
Resists seawater, salt spray, oil; anti-microbial.
PLHL52-4 Epoxy Coal Tar Bitumen Anti-Corrosion Coating is a two-component epoxy coal tar bitumen anti-corrosion coating supplied as primer and topcoat. This coating is used for long-term anti-corrosion on external surfaces of buried pipelines, bottom plates of liquid storage tanks, and steel or concrete in submerged or wet-dry alternating environments.
It is composed of epoxy resin, coal tar pitch, anti-rust pigments, fillers, solvent, and additives, with a modified amine curing agent, and is supplied as Part A and Part B.
Supplied as primer and topcoat.
Designed for long-term anti-corrosion.
Suitable for external surfaces of buried pipelines.
Suitable for bottom plates of liquid storage tanks.
Suitable for steel and concrete in submerged environments.
Suitable for steel and concrete in wet-dry alternating environments.
This coating is suitable for a wide range of steel and concrete protection projects in industrial and buried service environments.
External surfaces of buried pipelines
Bottom plates of liquid storage tanks
Steel in submerged environments
Concrete in submerged environments
Steel in wet-dry alternating environments
Concrete in wet-dry alternating environments
| Item | Data |
|---|---|
| Mixing Ratio (A:B) | 7:1 |
| Induction Time | 5 min |
| Pot Life | 4 h |
| Application Methods | airless spray, brush, roller |
| Thinner / Cleaner | X-7 epoxy thinner, 2–8% |
| Recoat Interval (25°C) | min 12 h; max 7 d |
| Recommended DFT per coat | 50–80 µm (brush/roller 35–50 µm) |
Blast to Sa 2.5 or power-tool clean to St 3; surface profile 30–75 µm.
| Item | Data |
|---|---|
| Product Type | Two-component epoxy coal tar bitumen anti-corrosion coating |
| Appearance | primer brown-black; topcoat black |
| Theoretical Consumption | PLHL52-4 0.17 kg/m² at 60 µm (loss not included) |
| Density | primer 1.35 kg/L; topcoat 1.3 kg/L |
| Drying Time (25°C) | surface dry 2 h; hard dry 24 h; full cure 7 d |
| Packaging | Part A 22 kg; Part B 3 kg |
| Shelf Life | 12 months |
Storage
store in a dry, cool, ventilated place; keep away from fire; avoid strong sunlight; no outdoor storage.
System compatibility: (high-build) epoxy coal tar bitumen primer + (high-build) epoxy coal tar bitumen topcoat.
This product is a two-component epoxy coal tar bitumen anti-corrosion coating supplied as primer and topcoat.
This coating is used for long-term anti-corrosion on buried pipelines, tank bottom plates, and steel or concrete in submerged or wet-dry alternating environments.
Yes. This coating is used on steel and concrete in submerged or wet-dry alternating environments.
This coating can be applied by airless spray, brush, or roller.
The recommended dry film thickness per coat is 50–80 µm, or 35–50 µm by brush/roller.
System compatibility includes (high-build) epoxy coal tar bitumen primer and (high-build) epoxy coal tar bitumen topcoat.
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