Insulation Type: PTFE
Trade Names(the following are common tradenames used for PTFE insulation)
- Teflon®
- Algoflon®
- Fluon®
- Halon® PTFE
- Polyflon®
- Hostaflon®
Aircraft on which PTFE has been used/found- A-10 (No dates available)
- Chinook (No dates available)
*Note: Some of the older aircraft types of insulation may have replaced by the original wire. The listings of aircraft are not complete, especially with those special uses, e.g., engine areas, electronic boxes, etc.
Mil Specs and other Standards using PTFE- BMS 13-28 (Boeing)
- MIL-W-16878/4
- MIL-W-16878/6
- MIL-W-16878/5
- MIL-W-16878/20
- MIL-W-16878/21
- MIL-W-16878/22
- MIL-W-16878/23
- MIL-W-16878/24
- MIL-W-16878/25
- MIL-W-16878/26
- MIL-W-16878/27
- MIL-W-16878/28
- MIL-W-16878/34
- MIL-W-16878/35
- MIL-W-22759/1
- MIL-W-22759/2
- MIL-W-22759/3
- MIL-W-22759/4
- MIL-W-22759/5
- MIL-W-22759/6
- MIL-W-22759/7
- MIL-W-22759/8
- MIL-W-22759/9
- MIL-W-22759/10
- MIL-W-22759/11
- MIL-W-22759/12
- MIL-W-22759/20
- MIL-W-22759/21
- MIL-W-22759/22
- MIL-W-22759/23
- MIL-W-22759/28
- MIL-W-22759/29
- MIL-W-22759/30
- MIL-W-22759/31
- MIL-W-22759/80
- MIL-W-22759/81
- MIL-W-22759/82
- MIL-W-22759/83
- MIL-W-22759/84
- MIL-W-22759/85
- MIL-W-22759/86
- MIL-W-22759/87
- MIL-W-22759/88
- MIL-W-22759/89
- MIL-W-22759/90
- MIL-W-22759/91
- MIL-W-22759/92
- MIL-W-25038/1
- MIL-W-25038/2
- MIL-W-25038/3
- MIL-W-81822/4
- MIL-W-81822/6
- PAN 6411
- SAE-AS22759/1
- SAE-AS22759/10
- SAE-AS22759/11
- SAE-AS22759/12
- SAE-AS22759/2
- SAE-AS22759/20
- SAE-AS22759/21
- SAE-AS22759/22
- SAE-AS22759/23
- SAE-AS22759/28
- SAE-AS22759/29
- SAE-AS22759/3
- SAE-AS22759/30
- SAE-AS22759/31
- SAE-AS22759/4
- SAE-AS22759/5
- SAE-AS22759/6
- SAE-AS22759/7
- SAE-AS22759/8
- SAE-AS22759/80
- SAE-AS22759/81
- SAE-AS22759/82
- SAE-AS22759/83
- SAE-AS22759/84
- SAE-AS22759/85
- SAE-AS22759/86
- SAE-AS22759/87
- SAE-AS22759/88
- SAE-AS22759/89
- SAE-AS22759/9
- SAE-AS22759/90
- SAE-AS22759/91
- SAE-AS22759/92
Advantages: Excellent high temperature properties
Non-Flammable
Good out-gassing characteristics
One of the most flexible of all insulation materials
Resistant with exposure to normally expected fluids
Good weathering, resists moisture, absorption and atomic oxygen erosion
Very low decomposition rate (decomposes to the monomer)
Very low surface energy
Disadvantages: Susceptible to cold flow when stressed (bent) over a tight radius or when laced too tightly
Degraded by solar radiation above 5 x10^5 Rd
Relatively heavy - 5.4 pounds per 1000 feet (7.9 kg/km) for AWG 20 gauge wire
Moderately thick – 60 mils (3.24 mm) for AWG 20 gauge wire
Large size mineral filled PTFE (see below) has failed completely due to longitudinal splitting
Other Information: PTFE sometimes used with other materials, e.g., glass, minerals (MIL-W-22759/5 through /8) and BMS 13-28
PTFE also used as a top coat or layer with other insulation materials-MIL-W-22759/80 through /92, DSP33/008, and ACT 150 and ACT 260
PTFE can be either extruded or a wrapped tape
Efglas has PTFE tape with PTFE impregnated fiber glass
Efglas is rated up to 260o C
Mystik® 7503 tape is a PTFE film with a silicone adhesive