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PLHL52-1 Epoxy Bitumen Glass Flake Coating

2K epoxy coal tar glass flake coating for buried and submerged steel structures and concrete. Outstanding water resistance and abrasion-resistant film for underground gas holders and mine shafts. 250µm+ total DFT.

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PLHL52-1 Epoxy Bitumen Glass Flake Coating Description

Overview

PLHL52-1 Epoxy Bitumen Glass Flake Coating is a two-component epoxy bitumen glass flake coating for heavy-duty protection of steel and concrete in underground/underwater service and internal linings. This coating is intended for underground and underwater steel structures and concrete facilities, and for internal lining protection.

It is composed of epoxy resin, coal tar pitch, glass flakes, solvent, and additives, with a modified amine curing agent, and is supplied as Part A and Part B.

Key Benefits

  • Designed for heavy-duty protection of steel and concrete.

  • Suitable for underground service.

  • Suitable for underwater service.

  • Suitable for internal lining protection.

  • Can be used on steel structures and concrete facilities.

This coating is suitable for a wide range of steel and concrete protection projects in industrial and underground or underwater environments.

Typical application areas

  • Underground steel structures.

  • Underwater steel structures.

  • Concrete facilities in underground service.

  • Concrete facilities in underwater service.

  • Internal lining protection.

  • Gas holder and tank bottom plates.

  • Underground mines.

Application Guide

Item Data
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 / Cleaner X-7 epoxy thinner, 2–8%
Recoat Interval min 24 h; max 7 d
Recommended DFT 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.

Technical Data

Item Data
Product Type Two-component epoxy bitumen glass flake coating
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
Packaging Part A 25 kg; Part B 2 kg or 3.5 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

System compatibility includes epoxy zinc-rich primer, inorganic zinc-rich primer, and epoxy bitumen glass flake coating.

Frequently Asked Questions

What type of product is this?

This product is a two-component epoxy bitumen glass flake coating supplied as Part A and Part B.

What substrates is this coating designed for?

This coating is designed for steel and concrete.

Where is this coating typically used?

This coating is used for underground and underwater steel structures, concrete facilities, and internal lining protection.

Can this coating be used for gas holder or tank bottom plates?

Yes. Examples of use include gas holder and tank bottom plates.

What application methods can be used?

This coating can be applied by airless spray, brush, or roller.

What is the recoat interval?

The recoat interval is min 24 h and max 7 d.

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