PLH52-4 Epoxy High-Build Aluminium Pigmented Topcoat

Epoxy Aluminium Pigmented Topcoat (2K) – High-build epoxy topcoat with aluminium paste.

For tanks, pipelines, and steel structures.
Mix ratio 24:4; pot life 4 h.
High solids; thick film reduces coat numbers.

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PLH52-4 Epoxy High-Build Aluminium Pigmented Topcoat Description

Overview

PLH52-4 Epoxy High-Build Aluminium Pigmented Topcoat is a two-component epoxy high-build aluminium pigmented topcoat containing aluminium paste to improve film mechanical performance and anti-permeation properties. This topcoat is used in heavy-duty anti-corrosion systems on steel structures, tanks, and pipelines for buried and indoor/outdoor service.

It is composed of epoxy resin, anti-rust pigments, dispersant, anti-settling agent, solvent, and aluminium paste, with a polyamine adduct curing agent, and is supplied as Part A and Part B. The product is described as a high-solids coating with higher corrosion resistance, chemical stability, heat resistance, oil resistance, and aging resistance.

Key Benefits

Contains aluminium paste to improve film mechanical performance.
Contains aluminium paste to improve anti-permeation properties.
High-solids coating for thick film build per coat.
Thick film build per coat can reduce the number of coats.
Suitable for steel structures, tanks, and pipelines.
Suitable for buried and indoor/outdoor service.

Recommended Uses

This topcoat is suitable for a wide range of steel protection projects in industrial environments.

Typical application areas

Steel structures in heavy-duty anti-corrosion systems.
Tanks in heavy-duty anti-corrosion systems.
Pipelines in heavy-duty anti-corrosion systems.
Buried service applications.
Indoor service applications.
Outdoor service applications.

Application Guide

Item	Data
Mixing Ratio (A:B)	24:4
Induction Time	5 min
Pot Life	4 h
Application Methods	Airless spray, brush
Thinner / Cleaner	X-7 epoxy thinner
Typical Dilution	2–8% (air spray may require more)
Recoat Interval	Minimum 24 h; maximum 7 days
Recommended DFT	60–90 µm per coat (brush: 40–60 µm per coat)

Surface Preparation

If the previous coat exceeds the maximum interval, abrade the previous coat. As first coat on steel, blast/shot 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 aluminium pigmented topcoat
Appearance / Color	Silver white
Theoretical Consumption	0.5 kg/L
Density / Specific Gravity	1.23 kg/L
Drying / Curing (25°C)	Touch dry 2 h; hard dry 24 h; full cure 7 days
Packaging	Part A 24 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 epoxy 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 aluminium pigmented topcoat supplied as Part A and Part B.

What is this topcoat used for?

This topcoat is used in heavy-duty anti-corrosion systems on steel structures, tanks, and pipelines.

What service conditions is this topcoat intended for?

This topcoat is intended for buried and indoor/outdoor service.

What application methods can be used?

This topcoat can be applied by airless spray or brush.

What is the recommended dry film thickness?

The recommended dry film thickness is 60–90 µm per coat, or 40–60 µm per coat by brush.

What should be done if the previous coat exceeds the maximum interval?

If the previous coat exceeds the maximum interval, abrade the previous coat.

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