REPAIR YOUR FUEL CELL
Who are some common manufacturers?
Original Equipment Manufacturers (OEM)
Firestone / AmFuel
BF Goodrich / AmFuel
US Rubber / Uniroyal / AmFuel
Goodyear Aerospace / Loral / Engineered Fabrics Corporation
Replacement part manufacturers (PMA)
Graham Lott Ent. / Duraflex / A/C Fuel Cells Worldwide / A/C Team
Aero-Tech Services / ATS
A.I.R. / Duralite / FFC Mfg
Eagle Technologies Co. / Eagle Fuel Cells-ETC, Inc.
Which construction types are repairable?
| Goodyear / Loral / Engineered Fabrics (multi-ply urethane) |
Repairable? | ||
| Pre 1960 | Pliocel | All nylon construction, becomes very brittle |
Rarely |
| 1960-70 | BTC-39 | Condemned - AD 78-05-06 | No |
| 1970-72 | BTC-54A | Soft urethane similar to BTC-39 but thicker |
No |
| 1973-78 | BTC-67 | Urethane becomes stiff & brittle, nipples break off |
Not worth it |
| 1979-88 | BTC-85 | Better urethane construction with nitrile nipples |
Sometimes |
| 1988-on | BTC-99 | Latest construction very durable | Yes |
| A.I.R. / Duralite (1-ply urethane) FFC MFG. (1-ply nitrile) |
Repairable? | ||
| 1979-94 | P-2315 | Low-grade urethane, nipples break off body crumbles | No |
| 1994-on | P-2393 | Similar to 1975-91 Uniroyal, weak nipples | Usually |
| US Rubber / AmFuel (multi-ply nitrile) | Repairable? | ||
| 1946-55 | US-538N | Durable military construction becomes stiff with age | Sometimes |
| 1956-on | US-566R | Durable military construction | Usually |
| 1956-59 | US-584 | Nitrile coated cotton fabric, dries out, shrinks, and tears | Not worth it |
| 1956-61 | US-588 | Durable military construction | Usually |
| 1959-62 | US-907 | Extremely thin material | No |
| Uniroyal / AmFuel (1-ply nitrile) | Repairable? | ||
| 1963-74 | US-943 | Durable, gusseted corners, medium weight fabric | Usually |
| 1975-91 | US-943 | Less durable, stiff folded corners lower quality fabric | Usually |
| Aero-Tech Services / A.T.S. (2-ply nitrile) | Repairable? | ||
| 1976-90 | 201 | Blisters and separations, shrinkage, not ozone resistant | Not worth it |
| 1991-on | 201 | Shrinkage issue similar to US-584 | Not worth it |
| Graham Lott Ent. / Duraflex / A/C Fuel Cells Worldwide / A/C Team (1-ply nitrile) | Repairable? | ||
| 1985-2002 | Made of diaphragm material, dries out easily, leaks extensively, weak seams (Unapproved parts notice #96-269 April 13, 1999) | No | |