HS06-1 Engineering Machinery Anti-Corrosion Primer

Overview
Two-component polyurethane anti-corrosion primer for steel substrates on heavy construction equipment where adhesion and abrasion resistance are critical.
Film focuses on toughness, corrosion resistance, water/oil/chemical resistance for cranes, excavators, and earthmoving machinery.

Composition
Part A: polyurethane resin with anti-rust pigments, solvent, and additives.
Part B: polyisocyanate curing agent.

Typical uses
Anti-rust primer for cranes, loaders, excavators, bulldozers, overhead cranes, mining machinery, dock machinery, and coal mining equipment.

Technical data (typical)

• Appearance: iron red, grey.

• Theoretical consumption: 0.13 kg/m² at 40 µm DFT (loss not included).

• Density: 1.4 kg/L.

• Drying time (25℃): surface dry 2 h; hard dry 24 h; full cure 7 d.

Application data (25°C)

• Mixing ratio (Part A:Part B): 21:7.

• Induction time: 5 min at 25℃.

• Pot life: 4 h at 25℃.

• Application methods: spray, brush.

• Thinner: X-10 polyurethane thinner, 3–9%.

• Recoat interval: min 8 h; max 7 d.

• Recommended coats/DFT: 1 coat 20–40 µm (spray or brush).

• Recommended system: HS06-1 engineering machinery primer + HS04-1 engineering machinery topcoat.

Surface preparation
Blast-clean to Sa 2.5 or power-tool clean to St 3; surface profile 30–75 µm; phosphating/passivation optional per customer requirements.

System compatibility / packing / storage

• System compatibility: primer with HS04-1 engineering machinery topcoat for heavy equipment.

• Construction conditions: RH ≤85%; 5–35℃; avoid rain/snow, strong wind (>6.7 m/s), heavy fog, intense sunlight.

• Storage: dry, cool, ventilated warehouse away from fire sources; avoid strong sunlight; no outdoor stacking; shelf life 12 months.

• Packing: Part A 21 kg; Part B 7 kg.