6251 Polyimide tape is a general polyimide film that is coated or laminated on one or both sides with FEP Fluoropolymer, which imparts heat sealability, provides a moisture barrier, and enhances chemical resistance. 6251 Polyimide tape is recommended in applications that require a heat bondable film, or moisture and chemical resistance beyond the capabilities of uncoated polyimide film. Applications Tubing Heater circuits Heat sealable bags Automotive diaphragms and manifolds Electrical insulation Typical Properities NO. Item Index 1 Tensile Stength (MPa) 156 135 2 Elongation at Break 76 93 3 Striping Force Tape to Tape (N/25mm) 4 Tape to copper 4 4 Surface Resistivity 1.5 1015 5 Breakdown Strength (MV/m) 90 6 Volume Resistivity (m) 2.1 1014 7 Dielectric Constant 50Hz 2-3 8 Dissipation Factor 0.0012 Polyimide film FEP Series is polyimide film coated with FEP on one or both side, imparts heat sealability, provides a moisture barrier, and enhances chemical resistance. Mainly used in magnet wire insulation, formed coil insulation, CPTC and release liner. Type Polyimide film FEP Constructions In this series order code of three digits, the first and third digit represents the normal thickness of the coating FEP, the symbol 9 is used to represent 12.7um (0.5 mil) 6 to 2.54 um. HF is used to represent polyimide film coated with FEP on single side, and FHF to double side. Type FEP PI Film FEP Total um um um um HF019 25.4 12.7 38.1 HF019-B 30 10 40 HF019-C 40 10 50 HF011 25.4 25.4 50.8 HF021 50.8 25.4 76.2 FHF616 2.54 25.4 2.54 30.48 FHF616-B 3 25.4 3 31.4 FHF616-C 6.35 25.4 6.35 38.1 FHF919 12.7 25.4 12.7 50.8 FHF919-B 10 30 10 50 FHF919-C 10 40 10 60 FHF929 12.7 50.8 12.7 76.2 Thickness Tolerance % 10 Other size should be talked if we could produce.
