The Prepainted Aluminum Coil for Gutter

The prepainted aluminum isn't simply spray-painted; it's applied to the aluminum alloy coil through a specialized coating process. The quality of the coating directly impacts the gutter's resistance to aging and corrosion.

1. PVDF coating

If the house is located in a high-UV, rainy, or coastal area (where salt spray corrosion is a concern), fluorocarbon coating is the preferred choice. Its core advantage is its exceptional weather resistance. After high-temperature baking, the coating bonds tightly to the aluminum, withstanding extreme temperature swings from -40°C to 120°C. It resists fading and cracking even under prolonged exposure to the sun, and can even last for over 20 years. However, its relatively high cost makes it more suitable for long-term residential applications such as villas and self-built homes, where durability is paramount.

2. Polyester Coating (PE)

Polyester coating is currently the primary choice for household colored aluminum gutters, offering high cost performance. While not as weather-resistant as fluorocarbon, it meets the needs of most regions. Under normal outdoor use, it will not show noticeable fading for 5-10 years and offers excellent impact resistance (e.g., it resists damage from leaves or pebbles on rainy days). Whether it's a multi-story residence or a self-built house in the countryside, polyester coating is a practical choice and a top choice for those on a limited budget.

3. Powder Coating

Powder coating is a coating formed by applying powdered paint to aluminum using electrostatic attraction and then curing it at high temperatures. Its advantages are obvious: zero formaldehyde, no volatile odor, and environmental friendliness, making it suitable for homes with elderly and children.

However, be aware that powder coatings offer less weather resistance. Avoid using them on top floors or on west-facing gutters exposed to direct sunlight for extended periods. Otherwise, slight discoloration may occur within 3-5 years.

Why aluminum gutter coil is recommended

1. Corrosion and rust resistance, requiring no frequent maintenance

Aluminum alloy is inherently corrosion-resistant. With the added protection of a coating, there's no need to worry about rusting or leaking like steel, nor will it warp or crack under high temperatures like PVC gutters. After basic installation, no major repairs are required for over 10 years, saving significant future trouble.

2. Lightweight and easy installation

Colored aluminum has only one-third the density of steel, making it extremely lightweight. Installation requires no additional wall reinforcement and can be easily performed by two workers, significantly reducing both construction difficulty and cost. Furthermore, aluminum's flexible texture allows for flexible tailoring to the gutter's curvature, adapting to various roof types.

3. Aesthetics and Durability

Compared to steel gutters and PVC gutter, the coating on colored aluminum gutters stays vibrant and bright for a long time. It can even match the color of doors, windows, and balcony railings, adding a more integrated look to the home. Even if you want to renovate years later, you don't need to replace the gutters; a simple cleaning can restore their shine.

4. Environmentally friendly and recyclable

Aluminum alloy is 100% recyclable. Old gutters can be recycled and reused during future home renovations, which is both environmentally friendly and reduces waste. While the initial cost of aluminum gutters is higher than PVC, their longevity of over 10 years (two to three times that of PVC) makes them more cost-effective in the long run. Welcome to inquire aluminum gutter coil prices from us directly.