PLJ-1 Polysiloxane Topcoat

Overview
Two-component polysiloxane topcoat for steel protection in severely corrosive atmospheric environments.​

Composition
Imported polysiloxane resin, imported curing agent, weather-resistant pigments, additives; supplied as Part A & Part B.​

Typical uses
For equipment and facilities in petrochemical, power, metallurgy, transportation, food industries, gas holders, pipelines, and storage tanks.​

Technical data (typical)

• Appearance: various colors.​

• Theoretical consumption: 0.16 kg/m² at 50 µm DFT (loss not included).​

• Density: 1.2 kg/L.​

• Drying time (25°C): surface dry 1 h; hard dry 24 h; full cure 7 d.​

Application data (25°C)

• Mixing ratio (A:B): 24:3.​

• Induction time: 5 min.​

• Pot life: 4 h.​

• Application methods: airless spray, brush, roller.​

• Thinner: dedicated thinner, 3–9%.​

• Recoat interval: min 24 h; max 7 d.​

• Recommended DFT per coat: 30–50 µm (brush/roller 30–40 µm).​

• Compatible undercoats: epoxy zinc-rich primer, epoxy MIO intermediate coating, fluorocarbon topcoat, etc.​

Surface preparation
Steel: blast to Sa 2.5 or power-tool clean to St 3; surface profile 30–75 µm.​

System compatibility / packing / storage

• Packing: Part A 24 kg; Part B 3 kg.​

• Storage: dry, cool, ventilated; away from fire; avoid strong sunlight; no outdoor storage.​

• Shelf life: 12 months.