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| Ratio | UL Specs | MIL Specs | |
|---|---|---|---|
| High temperature flexible fluid resistant fluoropolymer, thin wall | 2 to 1 | n/a | MIL-DTL-23053/13, MIL-DTL-23053/18, Class 3, NASA SP-R-0022A |
| 3M/ECC | Alpha | Raychem | Sumitomo |
|---|---|---|---|
| n/a | n/a | RT555 | KH 230 |
| Description | Usages | Operating Temp | Shrink Temp | Packaging |
|---|---|---|---|---|
| Highly flexible, fluid resistant, flame retardant fluoropolymer. Also resistant to Skydrol 500 aircraft hydraulic fluid. Indefinite storage life. | Recommended for applications where thin walls and resistance to aggressive solvents, including Skydrol, and high temperatures is required. Bundling, harnessing and environmental protection within engine compartments is one such application. | -70 C to +200 C and up to 300 C for short periods | 130 C | Spool |
| Property (units) | Test Method | Requirements |
|---|---|---|
| Tensile strength (psi) | ASTM D638 | 1500 min |
| Elongation (%) | ASTM D638 | 250 min |
| Low temp flexibility (-70 C) | MIL-DTL-23053 | no cracking |
| Heat shock (300 C, 4 hrs.) | MIL-DTL-23053 | no cracking |
| Heat resistance (250 C, 168 hrs.) El | ASTM D638 | 200 min |
| Tensile strength (psi) | ASTM D638 | 1200 min |
| Longituginal change (%) | MIL-DTL-23053 | -10 max |
| Property (units) | Test Method | Requirements |
|---|---|---|
| Dielectric strength (volts/mil) | ASTM D876 | 500 min |
| Volume resistivity (ohm-cm) | ASTM D876 | 1.0 x 1013 |
| Property (units) | Test Method | Requirements |
|---|---|---|
| Vacuum outgassing, TML/CVCM, (%) | NASA SP-R-0022A | 1.0 / 0.1 |
| Copper mirror corrosion (175 C, 16 | MIL-DTL-23053 | no corrosion |
| Water absorption (%) | ASTM D570 | 0.1 max |
| Fluid resistance (23 C, 24 hrs.) Te | MIL-DTL-23053 | 1200 min |
| Elongation (%) | MIL-DTL-23053 | 250 min |
| Flammability | MIL-DTL-23053 | 15 sec max |