PLH52-4 Epoxy High-Build Aluminium Pigmented Topcoat

Overview
Two-component epoxy high-build aluminium pigmented topcoat containing aluminium paste to improve film mechanical performance and anti-permeation properties.​
It is described as a high-solids coating with higher corrosion resistance, chemical stability, heat resistance, oil resistance, and aging resistance; thick film build per coat can reduce the number of coats.​

Composition
Epoxy resin, anti-rust pigments, dispersant, anti-settling agent, solvent, and aluminium paste; polyamine adduct curing agent; supplied as Part A & Part B.​

Typical uses

• Topcoat for heavy-duty anti-corrosion systems on steel structures, tanks, and pipelines for buried and indoor/outdoor service.​

Technical data (typical)

• 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.​

Application data (25°C)

• Mixing ratio (A:B): 24:4.​

• Induction time: 5 min.​

• Pot life: 4 h.​

• Application methods: Airless spray, brush.​

• Thinner: X-7 epoxy thinner; 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.​

System compatibility / packing / storage

• Compatible undercoats: epoxy primer, epoxy MIO intermediate coating, etc.​

• Shelf life: 12 months.​

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

• Packaging: Part A 24 kg; Part B 4 kg.