Epoxy bitumen glass flake coating (2K) for underground/underwater steel and concrete protection.
Underground tanks, mines, internal linings.
Pot life 4 h; recoat 24 h–7 d.
Water and chemical resistance; strong anti-permeation.
Overview
Two-component epoxy bitumen glass flake coating for heavy-duty protection of steel and concrete in underground/underwater service and internal linings.
Composition
Epoxy resin, coal tar pitch, glass flakes, solvent, additives; modified amine curing agent; supplied as Part A & Part B.
Typical uses
Underground/underwater steel structures and concrete facilities, or internal lining protection.
Examples include gas holder/tank bottom plates and underground mines.
Technical data (typical)
Appearance: brown-black.
Theoretical consumption: 0.38 kg/m² at 150 µm DFT (loss not included).
Density: 1.28 kg/L.
Drying time (25°C): surface dry 2 h; hard dry 24 h; full cure 7 d.
Application data (25°C)
Mixing ratio (A:B): 25:2 or 25:3.5.
Induction time: 5 min.
Pot life: 4 h.
Application methods: airless spray, brush, roller.
Thinner: X-7 epoxy thinner, 2–8%.
Recoat interval: min 24 h; max 7 d.
Recommended DFT per coat: 50–80 µm (brush/roller 30–50 µm).
Surface preparation
If applied over a two-component primer, surfaces must be clean, dry, and free of contaminants; abrade if beyond the maximum recoat interval.
If used directly as the first coat, blast to Sa 2.5 or power-tool clean to St 3; surface profile 30–75 µm.
System compatibility / packing / storage
System compatibility: epoxy zinc-rich primer; inorganic zinc-rich primer; epoxy bitumen glass flake coating.
Packing: Part A 25 kg; Part B 2 kg or 3.5 kg.
Storage: store in a dry, cool, ventilated place; keep away from fire; avoid strong sunlight; no outdoor storage.
Shelf life: 12 months.
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