If you have owned budget outdoor settings, you may have seen this pattern. The frames look fine for one or two summers, then rust spots appear, joints start to bind, and the set heads to verge collection. The usual culprit is mild steel with a thin paint finish. Aluminium solves the core problems those sets run into in Perth conditions.
1. Choose The Right Metal
| Steel | Aluminium | Stainless steel |
|
|---|---|---|---|
| Rustproof | ✗ | ✓ | ✓ |
| Marine ready | ✗ | ✓ | ✓ |
| Low maintenance | ✗ | ✓ | ✓ |
| Cost | $ | $$ | $$$$ |
Takeaway: Aluminium delivers the rustproof, coastal benefits of stainless steel at a lower cost.
Note, stainless performance near the coast varies by grade. 316 is commonly used.
2. The Finish Matters Just As Much
There is no use in a high quality metal frame if the coating is cheap and flakes or peels. In Perth sun and salt air, low grade paint fades and powders into a chalky film. Fine cracks at edges and welds let water creep under the coating, lifting it into blisters that burst and flake away. On steel, those exposed spots form red rust that creeps beneath the paint and spreads, often staining paving and gathering around fasteners. A 3 stage powder coat bonds to the metal, seals edges and welds, resists chalking and blistering, and holds colour with simple wash and rinse care.
What each stage means
- Pretreatment: cleans and conditions the metal so coating can grip.
- Primer: builds a tough base that improves adhesion and chip resistance, especially at edges and welds.
- UV stable topcoat: seals the system and protects colour in sun and salt air.
Powder coatings, side by side
| Single layer powder | 3 stage powder coat | |
|---|---|---|
| Pretreatment | ✗ | ✓ |
| Primer | ✗ | ✓ |
| UV stable topcoat | ✓ | ✓ |
| Colour retention in sun | ✓ | ✓ |
| Resists flaking and chips | ✗ | ✓ |
| Care needed | Moderate | Low |
| Cost | $ | $$ |
Takeaway: A 3 stage powder coat costs a little more than a single layer, but it bonds better, resists chips, and stays colour true. It is the best value over the life of the setting.
The bottom line
Pick aluminium to avoid red rust, then pair it with a 3 stage powder coat for a sealed finish that lasts in Perth sun and salt. Wash with mild soap and water and avoid harsh cleaners.
See the difference in person: our range uses 3 stage powder coated aluminium across lounges, dining and bar settings. Browse the collection here: Outdoor Furniture Warehouse collections.
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