Finishing Techniques

Polyester Powder Coating

Polyester powder coating (PPC) has become one of the favoured finishes for metal structures in architecture. Using an electrostatic fusion process, where powder particles are attracted to the item and “fused” on to the metal by heat, PPC offers a durable finish to both aluminium and mild steel.

Cadisch MDA offers Polyester coating in any RAL or BS colour including metallic colours. We guarantee a minimum coverage of 50 microns and are able to offer substantial warranties for many conditions.

Satin and Bright Polishing

Available on most Stainless and Aluminium items, Cadisch MDA are able to offer a variety of polished finishes to compliment the architectural environment. Using abrasive, non-ferrous belts Satin finish ranges from 180 (coarse) grit to 500 grit (super mirror on Stainless Steel).

Nylon Coating

Whilst Polyester coating is an ideal option for most applications, Nylon coating offers more in terms of durability and abrasion resistance. Again available in virtually all RAL or BS colours. Nylon coating offers a surface coverage of up to 150 microns as opposed to PPC’s average of 50 – 80 microns. The inherent flexibility of Nylon makes it particularly resistant to flaking or chipping and graffiti or marking can be removed with a simple solvent. Again, substantial guarantees are available with Nylon coatings upon request.

Electro Polishing

Whilst abrasive finishes such as Satin Polishing are commonly applied to Stainless Steel, in some instances Electro-Polishing can be more appropriate for example, when the surface of the material is particularly complex e.g. Welded or Woven Stainless Steel Mesh. Electro polishing relies upon anodic reduction of the material surface to give a uniform lustre. Placing the item to be polished in an electrolyte bath, an electrical current removes the surface of the Stainless Steel in very small amounts thus producing an even, grain free finish.

Anodising

An extremely durable weather proof yet finely detailed finish, which has dominated architectural Aluminium for many years.  Anodising is an electrolytical process which relies upon the thickening of the oxide film on the Aluminium surface to provide an attractive, hard wearing and stable satin / matt surface for almost any Aluminium section. When specifying an anodised finish it is imperative to select a grade of Aluminium that is suitable for architectural anodising.