P-421 is a heavy-duty PTFE film tape that fulfills requirements for ultra-high dielectric strength, high temperature use with high to medium gauge magnet wire in larger-size components making it ideal for use in aerospace and electrical applications.
|  | 
| BACKING MATERIAL | PTFE Film | 
|---|---|
| ADHESIVE | Cured Silicone | 
| COLOR | Gray | 
| INSULATION CLASS UL | 356°F/ 180°C | 
| GOVERNMENT SPECIFICATIONS | ASTM D570, CID A-A-59474C Type I, Class 4 | 
| BOEING SPECIFICATIONS | BAC 5034 Type IV, Class 3B, BAC 5157 | 
| IMPERIAL | METRIC | |
|---|---|---|
| TOTAL TAPE THICKNESS | 6.8 mils | 0.17mm | 
| TENSILE STRENGTH | 66 lbs/in | 116 N/10mm | 
| ELONGATION | 143% | 143% | 
| ADHESION TO STEEL | 37 oz/in | 4.0 N/10mm | 
| DIELECTRIC STRENGTH | 17,800 volts | 17.8 kV | 
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TEL 1-800-755-8273
Business Hours (EST) 8:00 a.m.-5:30 p.m.
Except for Sat, Sun, and Holidays