Powder Coated Aluminium Extrusions
PROCESS
The powder coating process starts with the metal components being cleaned, which helps the coating to adhere to the metal. This process is carried out in a multistage immersion water tank system as follows;
• A de-greaser and light etch is used to clean the metal after which a two bath rinse cleans it down.
• Next a non chromate bonder is applied to help the powder adhere to the aluminium.
• Finally a drying oven is used to ensure no moisture is present when the items are powder coated.
The components are then suspended from a jig and passed through a spray booth where the powder is applied by spray guns. Once the powder has been applied it is passed through a curing oven where the particles melt and fuse together and adhere to the components surface. This produces a uniform, smooth, durable finish.
COLORS & SURFACE FINISH
Generally we cover all the standard RAL colours, as well as custom colors.
The main finish reflects the gloss level of the final product, usually being Gloss, Satin or Matt. There is also the choice between Flat finish and Metallic.
We use mainly epoxy/polyester for indoor use; polyester for common outdoor use; super durable polyester for use near sea and high building. These three types of powder cover most of our customer’s application requirements.
APPLICATION
it is widely used in window and door, curtain wall, industrial profiles and decoration profiles.
