Materials Coated
PTFE coatings have the versatility to be applied to a range of substrates and by far the most ideal surface is a metallic substrate, and the main factor for any substrate to be applied with a PTFE coating, is temperature. The process to apply and cure the applied coating does in effect contain a heat treatment cycle, and in some cases more than one. Therefore, designers and engineers do need to be aware of the impact any such elevated temperatures may have on the molecular structure of the component. Stress relieving and annealing can occur to a degree to some specialised metallic substrates should precautions not be taken. However, with the experienced gained at PTFE Applied Coatings over the past thirty years, it is possible to apply the process to most metallic substrates without any deformation to the geometry of the part.
With our experience of handling machined and forged components for a range of manufacturing industries, including automotive and aerospace sectors, our internal procedures and controls have been developed to accommodate most requirements.
Non-metallic substrates are also possible to be coated for a wide range of applications that include gaskets, seals and elastomer products. It is important that we are made fully aware of the substrates involved prior to the application process. PTFE coatings can also be applied to glass products, with special care taken at the surface preparation stage of the process. One consideration to be dealt with when coating glass, there are not a great number of clear coatings, which is a favoured option for this substrate.
As indicated previously, some substrates do require some special pre-treatments prior to the application of a PTFE coating, one such example is copper. It is important that we discuss your requirements at an early stage when it is made clear what additional operation is required for copper.
Other special metallic substrates coated by PTFE Applied Coatings is woven wire cloth, this comes in the form Stainless Steels, Inconel and Hastalloy.