Our HL (hairline) finish duplex 2205 sheets combine aesthetic appeal, high strength, and outstanding atmospheric corrosion resistance for coastal building cladding.

304 or 316 curtain walls in marine environments show tea-staining and pitting within 2-5 years, requiring costly maintenance.

Duplex 2205 provides 10× the pitting resistance of 304, a uniform hairline finish hiding fingerprints, and higher strength allowing thinner panels.

• Coastal building façades
• Curtain walls
• Elevator interiors
• Bridge railings

The directional HL brush pattern (grain 120-180) diffuses light and hides micro-scratches. Duplex structure resists airborne chlorides.

For direct sea spray, use 2205 HL. For inland high humidity, 2205 is optional. Ensure matching anodized aluminum contact is avoided.

Yes, with brush refinishing.

Slightly, but longer life.

Virtually no red rust.