Design and installation guide
AR-FFFP foam: film, protein blanket and alcohol resistance
AR-FFFP is the alcohol-resistant film-forming fluoroprotein family. It combines a protein blanket and film effect on suitable hydrocarbons with protective-layer behaviour on compatible polar solvents. This combination is assessed by model for multiple-liquid hazards.
The three mechanisms do not establish the highest rating on every fuel or identical results with every device. Fuel lists, concentration and application follow manufacturer data. Fluorine-free AR alternatives are compared using their own evidence.
01
How does the foam form and provide protection?
Concentrate chemistry, proportioning with water and application method together determine foam behaviour.
Protein-based blanket
Correctly proportioned solution is aerated into foam. The protein structure contributes to blanket persistence, with quality verified alongside nozzle and flow conditions.
Film on hydrocarbons
Fluorinated surfactants support aqueous film formation on suitable hydrocarbons. Blanket and film help limit vapour release. Fuel temperature and surface application influence this behaviour.
Protective structure on polar solvents
The AR formulation helps limit foam breakdown on compatible polar fuels. Layer formation and integrity depend on fuel and application. Forceful application is not assumed suitable for every model.
02
Selection, hardware and product condition
Combustible material, product documentation and installed hardware are assessed together for appropriate selection.
Fuel and concentration
- Fuel and evidence scope
- The actual hydrocarbon, alcohol, ketone or blend is established. AR properties and any EN 1568-3 / -4 classifications are checked with fuel-specific test conditions. A blanket Class 1A rating is not assigned to every product.
- Single- or dual-ratio products
- Products may use different concentration notations such as 3×3 or 3×6. Hydrocarbon and polar-solvent settings are read separately. Agent quantity, proportioning and duration follow the selected model.
Proportioning and discharge equipment
- Discharge preserving the blanket
- Chambers, branchpipes or monitors follow validated model use. Required gentle application is identified for polar fuels. Tank and spill layouts consider delivery to the protected surface.
- Proportioning accuracy
- Viscosity of the polymer-containing concentrate is assessed with temperature and flow. Pumps and suction lines are matched for accurate concentration. Water type and materials contacting concentrate are separately verified.
Storage, documentation and environment
- Preserving concentrate condition
- Storage temperature and tank materials follow manufacturer instructions. Evaporation, dilution and contamination are controlled, with batch identification and sample checks recorded. Different concentrates are not mixed without documented compatibility.
- Fluorinated ingredients and after-use management
- Safety information and conditions applicable at the project location are reviewed for fluorinated foam. Agent, wash water and contaminated firefighting water are collected appropriately. A transition to NFF also assesses hardware, fuel compatibility and legacy residues.
03
Applications and selection approach
The actual fuel, site conditions and validated scope of the selected model govern the following applications.
Multiple-solvent production
- Application need
- Multiple polar and hydrocarbon hazards may be present.
- Selection approach
- A suitable model covers the concentration and method for each fuel.
Chemical tanks and transfer
- Application need
- Surface delivery method matters.
- Selection approach
- Blanket, film or AR behaviour is assessed for the actual fuel and tank arrangement.
Agent replacement projects
- Application need
- Legacy fluorinated products and hardware are reviewed.
- Selection approach
- AR-FFFP and NFF options are compared for performance, concentration and transition requirements.
04
Checks considered together for this product
Scroll the table horizontally to view every column.
| Item | Product approach | Verification |
|---|---|---|
| Structure | Protein, film and alcohol resistance. | Model fuel-specific behaviour. |
| Difference from AR-FP | Film formation is additionally identified. | Correct interpretation of family designation. |
| EN classification | Depends on fuel and test conditions. | Concentration, water and application limits. |
| Alternative | Suitable AR-NFF may be assessed separately. | New verification for hardware and transition. |
A family description does not certify identical performance across manufacturers. Model values and approved application conditions are matched to current product data and the relevant documentation.
Share the combustible material, water supply and existing equipment so we can assess a suitable concentrate and application arrangement together.