Why Choose Our Aluminum Gutter Coils?

1.Superior Corrosion Resistance: Our gutter coils feature a protective alloy layer, ensuring decades of performance in coastal or high-moisture environments. Salt spray tested to exceed ASTM B117 standards.

2.Precision Gauge Control: Available in 0.027"–0.0394" thickness (0.7–1.0mm) with ±0.001" tolerance – optimal for seamless gutter forming machines while preventing warping.

3.Custom Sizing & Finishes: Widths:24" to 39" (610mm–990mm),Coil IDs: 150mm/300mm/505mm,Surface Finish:Mill finish, Kynar® PVDF coatings (RAL colors), or anodized options

Technical Advantages of Aluminum Coils for Gutter

Superior Weathering Performance

Our proprietary alloy formula (AA3105-H24) undergoes 2,000+ hours of salt spray testing - 3X longer than industry standard. The nano-crystalline oxide layer actively repels corrosive elements, making it ideal for:

• Coastal installations with salt-laden air

• Industrial zones with acid rain exposure

• Northern regions using de-icing salts

Precision-Controlled Mechanical Properties

• Tensile Strength: 140-180 MPa (optimized for gutter roll forming)

• Elongation: 10-15% (prevents cracking during sharp-bend profiling)

• Flatness Tolerance: ≤1mm/m (eliminates rippling in wide-span gutters)

Intelligent Surface Engineering

Choose from three advanced protection systems:

• Mill Finish: Natural aluminum oxide barrier (ideal for painted systems)

• Anodized: Electrochemical 20μm layer (architectural-grade UV resistance)

• PE/PVDF Coating: PE/PVDF resin coating (30-year color retention guarantee)

Thermal Stability Advantage

Maintains dimensional integrity across extreme temperatures (-40°F to 300°F) - critical for:

• Desert installations with 120°F+ rooftop temps

• Snowbelt regions experiencing freeze-thaw cycles