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PLH52-2 Epoxy High-Build Topcoat

2K high-build epoxy topcoat with high-solids formulation for heavy-duty corrosion protection on steel and concrete. Outstanding chemical, solvent and water resistance. 60µm DFT per coat, 2-coat system to 120µm.

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PLH52-2 Epoxy High-Build Topcoat Description

Overview

PLH52-2 Epoxy High-Build Topcoat is a two-component epoxy high-build topcoat with high corrosion resistance and high solids, designed for thicker film build per coat. This coating is intended for heavy-duty corrosion protection on steel structures and concrete surfaces.

It is composed of epoxy resin, weather-resistant pigments, additives, solvents, and a polyamine compound curing agent, and is supplied as Part A and Part B. The product is described as having good chemical stability and resistance to oil, water, and solvents, plus electrical insulation properties.

Key Benefits

  • Designed for thicker film build per coat.

  • Suitable for heavy-duty corrosion protection on steel structures and concrete surfaces.

  • Has good chemical stability.

  • Has resistance to oil, water, and solvents.

  • Provides electrical insulation properties.

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

Typical application areas

  • Steel structures requiring heavy-duty corrosion protection.

  • Concrete surfaces requiring heavy-duty corrosion protection.

Application Guide

Item Data
Mixing Ratio (A:B) 20:4
Induction Time 5 h
Pot Life 3 h
Application Methods Airless spray, brush, roller
Thinner / Cleaner X-7 epoxy thinner
Typical Dilution 3–9%
Recoat Interval Minimum 24 h; maximum 7 days
Recommended DFT 50–80 µm per coat (brush/roller: 30–50 µm per coat)

Surface Preparation

Over a two-component primer, the surface must be clean, dry, and free of contaminants; abrade if maximum recoat interval is exceeded. As first coat on steel, 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 high-build topcoat
Appearance / Color Various colors
Theoretical Consumption 0.2 kg/m² at 60 µm DFT (losses not included)
Density / Specific Gravity 1.20 kg/L
Drying / Curing (25°C) Touch dry 2 h; hard dry 24 h; full cure 7 days
Packaging Part A 20 kg; Part B 4 kg
Shelf Life 12 months

Storage
Store in a dry, cool, ventilated place away from ignition sources and direct sunlight; no outdoor storage.

System Compatibility

Compatible undercoats include inorganic zinc primer, epoxy zinc-rich primer, and epoxy MIO intermediate coating. Other compatible undercoats may also be used where applicable.

Frequently Asked Questions

What type of product is this?

This product is a two-component epoxy high-build topcoat supplied as Part A and Part B.

What substrates is this coating used for?

This coating is used for steel structures and concrete surfaces.

What application methods are available?

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

The recommended dry film thickness is 50–80 µm per coat, or 30–50 µm per coat by brush/roller.

What is the recoat interval?

The recoat interval is minimum 24 h and maximum 7 days.

Which undercoats is this coating compatible with?

Compatible undercoats include inorganic zinc primer, epoxy zinc-rich primer, and epoxy MIO intermediate coating.

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