Precision Paper Tube has facilities for fabricating bobbins. PPT maintains a large inventory of machine dies, therefore tooling if required is minimal. These fabricated bobbins can be made out of a wide range of insulating materials. Both for the core tubing and flanges.
Name Dielectric Strength (VPM) Temperature Class °C Specific Gravity ® Registered trademarks DuPont. Dielectric Kraft 165 90 (O) .77 Vulcanized Fiber 300 105 (A) 1.15 Resinite Standard Grade 260 105 (A) 1.24 Flame Retardant Resinite FR-9120 250 105 (A) 1.34 Mylar® 7,000 150 (B+) 1.39 Nomex® 720 220 (H+) .91