AIR 9205 R908 and R909 polyester webbing

The French aerospace specification AIR 9205 defines manufacturing requirements for technical safety webbing. References AIR 9205 R908 and R909 cover high-tenacity polyester webbing.
Polyester is selected for applications requiring low moisture uptake, dimensional stability and good outdoor durability.

Technical advantages of polyester webbing

UV resistance: Polyester is well suited to long-term outdoor exposure compared with more UV-sensitive fibres.
Low moisture uptake: The webbing maintains stable dimensions and mass in wet environments.
Chemical resistance: Polyester offers useful resistance to many oils, fuels and maintenance chemicals encountered in technical environments.
Controlled elongation: Polyester provides lower stretch than nylon, helping maintain more stable restraint tension.

AIR 9205 R908/R909 vs MIL-W-4088

MIL-W-4088 nylon webbing is selected where greater dynamic energy absorption is required. AIR 9205 R908/R909 polyester webbing is more appropriate where low elongation and outdoor stability are priorities.

AIR 9205 polyester vs natural-fibre AIR 9205 products

Cotton and linen references address different handling, heat and material requirements. Polyester provides a synthetic option for outdoor and chemically demanding applications.

Conformity

R908 and R909 correspond to defined widths and minimum breaking-load requirements. Production can be supplied with the conformity and traceability documentation required by the customer programme.