Behind their visual appeal, a key advantage of finishing is that it can strengthen the resistance of metal against corrosion. But no two projects are the same and each technique comes with its own list of pros and cons.
At Cadisch MDA we specialise in our finishes and offer a variety of powder coats and anodised finishes. So, to help you decide what method best suits your project we have put together a list of advantages and disadvantages for both.
1. Powder Coating
Powder coating is the process of creating an electric charge that causes a powder to fuse to the surface to the metal, which is then baked in a curing oven to achieve a smooth coating.
This method paved the way for many new interesting finishes in our collection including rust and Verdigris patinas. They have all the visual charm of natural oxidisation but with none of the pitfalls.
- Provides a layer of protection against corrosion, scratches/chipping and fading
- Achieves a consistent colour finish across the metal
- Non-toxic and less flammable than paint finish
- Powder coats can leave an ‘orange peel’ texture on the metal
- Involves a set up cost due to the machinery involved
- Powders cannot be mixed
Powder coating is the perfect method if you want to achieve a specific colour match. It can be applied to a range of substrates including steel and copper and offers excellent durability.
Anodising is an electrochemical process that increases the thickness of the natural oxide layer on the surface of aluminium.
It requires a specialist skill and an exact grade of metal to be effective, so it’s not an easy technique to perfect. Lucky for us, we have the benefit of many years of experience on our side, which has allowed us to harness the skill and apply it to our range.
- It’s easy maintain; it can be cleaned with water and mild detergents to restore the original lustre
- UV stable and will not peel or flake, as it is integral to the metal
- Protects the base metal to offer a deeper, richer metallic appearance
- Offers a wide range of architectural finishes
- This method draws from the base metal so it can be subject to colour variations
- Produces a harmful chemical effluent
- Harder to replicate consistency between batches
- Requires a high-grade alloy
Anodising can only be applied to aluminium. This finish is ideal in external environments because its UV stability will protect the light frame against weathering.