What are the surface treatments for aluminum lawn lights?

The commonly used surface treatments for aluminum lawn lights and their characteristics are as follows:

 

Anodic oxidation

1. Types: silver-white bright oxidation, sandblasted silver-white oxidation, black oxidation, alkaline sand oxidation and so on.
2. Features:

• Formation of dense oxide film, enhance corrosion and wear resistance (suitable for long-term outdoor use).
• Black oxidization can absorb light, suitable for testing equipment or high-end style lamps and lanterns.
• Alkaline sand oxidization has high surface hardness, scratch resistance but higher cost.

 

Sandblasting treatment

1. Process: Cover processing defects by sandblasting (glass sand, tungsten sand, etc.) to form a matte or coarse sand texture.
2. Applicable scenes: pursuing natural matte effect or lawn lamps that need to reduce reflection.

 

Electrophoresis Coating

1. Process: Anodizing followed by additional electrophoretic coating (e.g. sandblasting electrophoresis).
2. Features:

• Smooth and easy to clean surface, stronger corrosion resistance.
• Higher cost and not high temperature resistant (suitable for common outdoor environment).

 

Electrostatic spraying

1. Type: powder coating, fluorocarbon coating.
2. Features:

• Excellent weather resistance, UV resistance (suitable for rainy and sunny areas).
• Fluorocarbon spraying can be matched with wood grain transfer to enhance the decorative properties.

 

Polished & Brushed

1. Polishing: Bright surface, but easy to scratch, need regular maintenance (suitable for decorative lamp body localization).
2. Brushed (rubbed): presents a straight line texture, both aesthetic and anti-fingerprint properties.

 

Other Processes

1. Batch pattern/batch edge: forming decorative stripes or high-gloss edges through mechanical processing (for brand identity or detail design).
2. Tinted Finish: Multiple colors (e.g. bronze, champagne) are achieved through oxidation or dyeing.

 

Contrasting suggestions:

1. Cost-effective first choice: sandblasted oxidation (matte and stain-resistant, low cost).
2. High-end durability: Fluorocarbon coating or alkaline sand oxidation (scratch-resistant, long life).
3. Decorative needs: electrophoretic coating or brushed process (delicate surface, easy to clean).

 

Note: The choice should be combined with the local climate (e.g. coastal areas give priority to anodizing + electrophoresis) and maintenance costs (polishing requires frequent maintenance).