This PFA welding rod is made of imported ultra-pure PFA resin by extrusion process.Properties:Smooth surface,Website:http://www.rayflon-seals.com, transparent color, non stickLow and high temperature resistance, long term service temperature:-80~+260℃Universal chemical and corrosion resistanceExceptional thermal stress-crack resistanceExcellent electrical propertiesOutstanding fire resistance Good hot melting sealing and weldabilityParameters:Core diameter:3-10mmWelding current:220(A)Work temperature:100-260(℃)Rod diameter: 3mm, 4mm, 5mmLength: As required