Aluzinc planters are outdoor metal planters made from steel coated with aluminium, zinc, and silicon. This coating protects the surface from rust and weathering, helping the planters stay strong and stylish in all seasons.
Aluzinc Explained: Advanced Material for Outdoor Planters
Aluzinc is a steel coating made from 55% aluminium, 43.4% zinc, and 1.6% silicon, applied through a continuous galvanising process. This blend provides excellent corrosion protection while keeping a smooth, architectural look that suits modern gardens.
The aluminium forms a stable oxide layer that slows natural wear, while the zinc sacrifices itself when scratched to protect the steel beneath. Together, they create a semi-reflective finish with a subtle spangled pattern that stays clean and strong outdoors.
How the Oxidation Process Works
When metal is exposed to air and moisture, it reacts with oxygen in a process called oxidation. On normal steel, this causes rust that weakens the surface. On Aluzinc, oxidation works in your favour — the aluminium forms a tight protective layer, and the zinc reacts first to stop rust reaching the steel. Instead of corroding, the planter builds a natural barrier that helps it last longer.
What to Expect Outdoors
- A soft dulling of the shiny finish over time
- Slight colour changes as the protective layer forms
- Minor surface marks from soil, water, or weather
These are not signs of damage — they’re simply the protective oxidation process at work.
Do Aluzinc Planters Rust?
Short answer: not in the same way as regular steel planters. For normal use, any oxidation is cosmetic rather than structural, so the planter stays strong for years.
Why Choose Zinc Planters for Modern Gardens
Zinc planters offer a clean, modern look and hold up well outdoors. When made from Aluzinc, they provide added rust resistance — ideal for patios, courtyards, and terraces. A bold black zinc planter can bring structure to entrances or borders without overpowering other features.
The Functional Appeal of a Large Zinc Planter
A large zinc planter gives plenty of space for shrubs or small trees.
Zinc Trough Planter Range: Clean Lines for Defined Spaces
The zinc trough planter is ideal for creating structure along borders, walkways, or edges. Available in 1m and 70cm lengths, it fits naturally into both compact patios and larger landscaped areas. Finishes include black, black bronze, and silver, all powder-coated for added wear resistance.
Window Planters: Compact Style for Small Spaces
Smaller options like the window planter are perfect for herbs, flowers, or trailing plants on balconies and sills. The corrosion-resistant finish handles frequent watering and weather with ease.
How to Care for Aluzinc Planters
- Ensure proper drainage to avoid standing water at the base
- Avoid deep scratches when moving or planting
- Rinse occasionally to remove dirt, salts, or garden chemicals
With minimal care, your Aluzinc planter can stay strong and stylish for over a decade.
Key Features
- Aluzinc coating resists corrosion and rust outdoors
- Large zinc planters support deeper roots and mature plants
- Trough planters in 1m and 70cm sizes for structured layouts
- Powder-coated in black, black bronze, or silver finishes
- Lightweight yet sturdy design for easy movement
Customer Benefits
- Low maintenance across seasons
- Designed for long-term use in exposed garden areas
- Clean, architectural form complements a range of spaces
- Suitable for structured planting with visual clarity
In summary, Aluzinc planters combine the strength of steel with the natural protection of aluminium and zinc. Their self-protecting oxidation process keeps them rust-resistant, long-lasting, and ideal for stylish outdoor planting all year round.