Fomtec AFFF 3% S is an aqueous film forming foam concentrate (AFFF) consisting of a blend of fluorocarbon-, hydrocarbon surfactants and various solvents and stabilisers. Only C6 Pure fluorosurfactants are used in Fomtec AFFF-formulations. Fomtec AFFF 3% S utilises the unique film forming effect to cut off oxygen supply to the fire and the oleophobic properties of the foam enables a stable foam blanket to suppress reignition of the fire.
The fire performance of this product has been measured and documented according to “International Approvals” stated in this document. The design parameters depend on type of system and application. The use of the product should follow design guidelines. The foaming properties are depending
on equipment used and other variables such as water and ambient temperatures. Average expansion 7:1, average 25% drainage time 3:00 minutes using UNI 86 test nozzle according to EN 1568-3.
| Appearance | Clear to yellowish liquid |
| Specific gravity at 20°C | 1,020 ± 0.02 g/ml |
| Viscosity at 25°C spindle #2, 60 rpm | 5,5 mPas ± 2 |
| Viscosity at 20°C spindle #2, 60 rpm | 6 mPas ± 2 |
| Viscosity at 2°C spindle #2, 60 rpm | 8 mPas ± 2 |
| pH | 5,5 - 6,5 |
| Freezing point | -3°C |
| Recommended storage temperature | -3 to 55°C |
| UL temperature range* | 1,7 to 49°C |
| Suspended sediment (v/v) | Less than 0,1% |
| Surface tension | ≤ 19,0 mN/m |
Stored in original unbroken packaging the product will have a long shelf life. Shelf life in excess of 10 years will be found in temperate climates. As with all foams, shelf life will be dependent on storage temperatures and conditions. For storage recommendations and material compatibility please refer to our Fomtec Technical Advices FTA 10 addressing the topic.
