11 March 2005
11 March 2005
Victrex has licensed a worldwide network of electrostatic spray and dispersion coating formulators to produce both powder and aqueous-based coatings made from Victrex Peek polymer.
The coatings are based on semi-crystalline Victrex Peek thermoplastic which is widely regarded as having some of the best combination of properties for harsh environments, such as high temperature resistance, superior wear and abrasion resistance, chemical resistance and fire, smoke and toxicity performance.
According to Annette Forster, New Market Development Manager for Victrex, ""When a thin layer of Victrex Peek-based coating is applied to a substrate, it confers all the performance properties associated with our high performance polymers.""
Forster added that ""Victrex Peek-based coatings are under evaluation in analytical, semiconductor, and medical applications because they provide a lubricious, non-sloughing, and tough protective layer over metals, ceramics, and glass. They are also being evaluated in the food industry because of their FDA compliance and their superior chemical resistance to harsh cleaning fluids.""
Coatings are applied by spraying Victrex Peek -based powder with an average particle size of between 30 and 80 µm. After application of the powder, parts are heated in an oven to around 752°F (400°C) at which point the powder melts to form a continuous film. Air cooling of the liquefied film then causes it to solidify again. This process is repeated to build up the required coating thickness on a variety of substrates including stainless steel and aluminium.