In aerospace fire testing, PI tape meets flame-retardant requirements by resisting ignition, self-extinguishing after flame removal, and producing low smoke and toxicity, helping aircraft components comply with FAA and EASA safety standards.
In the aerospace industry, fire safety is not optional—it’s a certified requirement. Every component, from wiring insulation to surface protection, must comply with stringent fire-resistance standards set by aviation authorities such as the FAA (Federal Aviation Administration) and EASA (European Union Aviation Safety Agency). Among the materials trusted for high-performance applications is polyimide (PI) tape, which excels in both thermal endurance and flame-retardant properties.
1) Fire Safety Standards in Aviation
Aircraft component fire testing often follows regulations like:
FAR 25.853 / Appendix F – Flammability test for materials in aircraft interiors.
BSS 7239 – Toxic gas emissions testing.
ABD 0031 – Smoke and toxicity criteria for aerospace materials.
These tests assess ignition resistance, flame spread, smoke density, and toxicity—all critical in ensuring passenger and crew safety.
2) Why PI Tape Is a Natural Fit for Flame-Retardant Needs
PI tape is made from aromatic polyimide films, known for:
Exceptional heat resistance – Withstanding continuous use up to 260 °C and short exposures over 400 °C.
Self-extinguishing behavior – Once the ignition source is removed, PI tape stops burning.
Low smoke generation – Meets strict smoke density limits in confined cabin spaces.
Minimal toxic emissions – Passes BSS 7239 toxicity thresholds.
3) PI Tape Functions in Aircraft Component Fire Testing
a) Wire and Cable Insulation
PI tape wraps wiring bundles to prevent flame propagation along cable routes.
b) Masking and Surface Protection
During fire exposure tests, PI tape can protect sensitive areas without igniting or producing hazardous fumes.
c) Composite Panel Edge Sealing
It prevents fire ingress through vulnerable edges while maintaining adhesion at high temperatures.
d) Thermal Barrier Layer
Serves as an insulating buffer in multi-layer fire-resistant structures.
4) Ensuring Compliance in Testing
To meet aviation certification:
Verify flammability ratings (UL 94 V-0 or equivalent) before selection.
Use silicone-adhesive PI tape for better performance in thermal shock cycles.
Document traceability of material lots for aerospace audits.
Test under simulated cabin conditions to confirm real-world flame resistance.
5) Conclusion
In aircraft component fire testing, PI tape isn’t just a passive protector—it’s an active safety material. With its inherent flame-retardant chemistry, high heat tolerance, and compliance with global aerospace fire standards, PI tape ensures that aviation components can withstand the most demanding safety evaluations.
