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PLH-20 Special Epoxy Primer

2K special epoxy primer with outstanding adhesion and impact resistance for demanding industrial applications. Engineered for power plants, bridges & petrochemical facilities. Compatible with all topcoat systems, 60µm DFT per coat.

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PLH-20 Special Epoxy Primer Description

Overview

PLH-20 Special Epoxy Primer is a two-component special epoxy primer cured with polyamine, formulated with modified epoxy resin, premium anti-rust pigments, composite anti-rust agents, additives, and solvent.

The product is formulated with modified epoxy resin, premium anti-rust pigments, composite anti-rust agents, additives, and solvent, and is supplied with a polyamine curing agent as Part A and Part B. It is described as having excellent adhesion, strong corrosion resistance, a tough and wear-resistant film, and good compatibility with subsequent coatings.

Key Benefits

  • Designed for corrosion protection of facilities and equipment

  • Described as having excellent adhesion

  • Described as having strong corrosion resistance

  • Described as having a tough and wear-resistant film

  • Described as having good compatibility with subsequent coatings

  • Can be applied by airless spray, brush, or roller

This primer is suitable for corrosion protection projects in industrial and marine environments.

Typical application areas

  • Power facilities and equipment

  • Bridges

  • Petrochemical facilities and equipment

  • Marine environments

  • Port environments

Application Guide

Item Details
Mixing Ratio (A:B) 25:2.5
Induction Time 5 min
Pot Life 2 h
Application Methods Airless spray, brush, roller
Thinner / Cleaner X-7 epoxy thinner
Typical Dilution 2–8%
Recoat Interval / Overcoating Interval (25°C) Minimum 24 h; maximum 7 days
Recommended DFT 60–80 µm per coat (brush/roller: 40–50 µm per coat)

Surface Preparation

Abrasive blasting or shot blasting to Sa 2.5, or power-tool cleaning to St 3; surface profile 30–75 µm.

Technical Data

Item Value
Product Type Two-component special epoxy primer
Appearance / Color Iron oxide red, brownish, gray
Theoretical Consumption 0.15 kg/m² at 50 µm DFT (losses not included)
Density / Specific Gravity 1.4 kg/L
Drying / Curing (25°C) Touch dry 1 h; hard dry 24 h; full cure 7 days
Packaging Part A 25 kg; Part B 2.5 kg
Shelf Life 12 months

Storage
Store in a dry, cool, ventilated warehouse away from fire sources and direct sunlight; outdoor storage is not permitted.

System Compatibility

This primer is compatible with epoxy MIO intermediate coating, epoxy topcoat, polyurethane topcoat, etc.

Frequently Asked Questions

What is this primer used for?
This primer is used for corrosion protection of facilities and equipment in power, bridge, petrochemical, marine, and port environments.

What kind of product is this?
It is a two-component special epoxy primer cured with polyamine.

What application methods are recommended?
The product can be applied by airless spray, brush, or roller.

What is the pot life at 25°C?
The pot life is 2 h.

What is the recommended recoat interval?
The minimum recoat interval is 24 h at 25°C, and the maximum recoat interval is 7 days.

What coatings is it compatible with?
It is compatible with epoxy MIO intermediate coating, epoxy topcoat, polyurethane topcoat, etc.

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