Side-by-side
Respondol ATF 1x3% vs SUOLONG ECO SFFF 3%
Spec comparison for two products on Aviation Souk. Both compete in Fire Safety & Rescue.

Fire Safety & Rescue
Respondol ATF 1x3%
by Angus Fire Limited
The first 1% fluorine-free foam concentrate for hydrocarbon fires, also effective at 3% on polar solvents — halving concentrate requirements for large-area fuel-in-depth incidents without sacrificing certified performance.

Fire Safety & Rescue
SUOLONG ECO SFFF 3%
by suolong
Fluorine-free (PFAS-free) synthetic foam concentrate for ARFF, ICAO Level B
| Cost of ownership | Respondol ATF 1x3% | SUOLONG ECO SFFF 3% |
|---|---|---|
| Price tier | — | — |
| Lead time (weeks) | ?–? | ?–? |
| Delivery | — | — |
| Install | — | — |
| GCC airports deployed | 0 | 0 |
| Certifications | 0 | 1 |
Specs
Technical specifications.
| Spec | Respondol ATF 1x3% | SUOLONG ECO SFFF 3% |
|---|---|---|
| Induction rate (hydrocarbons) | 1 % | — |
| Induction rate (polar solvents) | 3 % | — |
| Foam type | Alcohol-resistant fluorine-free (AR-FF), non-Newtonian | SFFF — synthetic fluorine-free foam |
| Certifications | UL162 Type II & III, ULC162 Type II & III, Lastfire (Good) | — |
| Specific gravity @ 20 °C | 1.06–1.08 | — |
| pH @ 20 °C | 6.5–7.5 | — |
| Expansion ratio | ≥6:1 | ≥7.0 |
| 25% drainage time | 30 minutes | — |
| Freezing point | -10 °C | ≤ −15 °C |
| Lowest operational use temp | 1.7 °C | — |
| Max continuous storage temp | 49 °C | — |
| Shelf life | ≥10 years | Over 10 years (per storage guidance) |
| Biodegradability | 100% biodegradable | — |
| Siloxane content | None | — |
| Fire class | — | Type B (hydrocarbon) |
| Mixture ratio | — | 3% |
| Specific gravity (20°C) | — | 1.00–1.10 |
| pH (20°C) | — | 6.5–8.5 |
| Viscosity (20°C) | — | ≤50 mm²/s |
| Sediment | — | ≤0.2 % |
| Expansion type | — | Low expansion |
| 25% drainage time (20°C) | — | ≥2.5 min |
| Storage temperature | — | −10 to +55 °C |
| PFAS content | — | None — fluorine-free (F3) |
| Water compatibility | — | Fresh and sea water |
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