NiTi Or Stainless Steel wires are coated with Teflon/5META/Tooth coloured epoxy resins. four Coating supplies are artificial resin or plastic resins for example epoxy resins.three Coating enhances esthetics and cuts down friction but Here are a few down sides as well. Amounts proven in italicized text are for merchandise mentioned https://www.ortix.co.uk/wires/