4:1 PTFE Heat-Shrinkable TubingOperating Temperature: -80ºC ~ 260ºC Shrink temperature:     320ºC ~ 380ºCShrink ratio:            4:1 PTFE heat shrinkable tube is applied imported polytetrafluoroethylene (PTFE). PTFE heat shrinkable tube has excellent chemical resistance,Website: , heat resistance, weather and corrosion resistance. It possesses excellent rigid and transparent. RoHS and Reach compliant.Widely used in electrical, computer, electro thermal, aerospace, military, and telecommunication etc. Such as mini transformer, special sensor, artificial blood vessel. Melting≥450ºCDielectric constant (*)50HZ2.1Rigidity85Copper corrosionNo corrosionAntibiotic property, erosion resistance propertyExcellentToughness (fold, bend, tear etc.)ExcellentTensile strength Mpa (kgf/cm)20.5Breakdown strength (kv/mm)30AppearanceSmooth, no visible fur and defects, no impurityLongitudinal change (%)≤5%ElongationVW-1ResistanceWear resistant, anti-acid and anti-virus,      corona discharge, solvent resistance, etcEnvironmentNo hazardous to humans and environmentPTPF heat shrinkable tube specification (4:1)      Size      mmAs suppliedAfter recovery T.W.After recovery IDthinThickΦ1.51.5±0.20.050.10.40±0.1Φ2.02.0±0.20.050.120.50±0.1Φ3.03.0±0.20.050.120.7±0.1Φ4.54.5±0.20.050.121.2±0.1Φ6.06.0±0.20.120.121.5±0.1Φ7.07.0±0.30.120.152.8±0.1Company Information:1) ISO 9001:2008 and TS16949 approved;2) 10 years exporting experience;3) 15 years manufacturing experience;4) Other products certificates: UL E360625 for heat shrink tube, silicone rubber tube; E333178 and E333177 for silicone fiberglass sleeve; ROHS, REACH, CQC.Factory:Our Services:1) 3~5 quick time production;2) 2 years quality guarantee;3) Prompt feedback;4) 24 hours on line service.5) Free sample approvalQuality:Our company's quality management system meets requirements of international standard ISO 9001:2008 and TS16949. Our products have been certified by UL, RoHS, REACH.And we have a good quality inspection departments, fully ensure product quality.