CHEMGUARD® NFF-332 3%x3% is a 3x3 alcohol-resistant
Non-Fluorinated Foam Concentrate (AR-SFFF) that provides
superior fire and vapor suppression performance for Class B
polar solvents and hydrocarbon fuel fires.
CHEMGUARD NFF-332 Non-Fluorinated Foam Concentrate
meets the FM 5130 standard and has been specifically designed
for use in fixed systems for sprinklers, as well as type II and
type III discharge devices. This concentrate is FM approved with
an extensive hardware package, including upright and pendant
sprinklers, B1 nozzles, bladder tanks, proportioners, pourers,
and handline foam nozzles.
CHEMGUARD NFF-332 is intended for forceful or gentle firefighting
applications at 3% solution on hydrocarbon and polar
solvent fuels in fresh, brackish, and salt water.
CHEMGUARD NFF-332 utilizes three suppression mechanisms
designed for rapid fire knockdown and superior burnback
resistance:
- Foam blanket: Extended drain times help block oxygen supply to the fuel and suppress fuel vapors.
- Polymeric membrane formation: On polar solvent fires,
liquid from the foam blanket drains and forms a protective
polymeric membrane, effectively sealing the fuel surface and
suppressing vapors.
- Cooling effect: The water content in the foam solution
provides a cooling action, enhancing overall fire suppression.
| Typical Physiochemical Properties |
| Appearance |
Viscous yellow liquid |
| Density |
1.13 +0.02 g/ml at 77 °F (25 °C) |
| pH |
7.0 to 8.0 |
| Refractive Index |
1.3976 minimum |
| Viscosity* |
2500 +500 cPs at 77 °F (25 °C) at 30 rpm |
| Viscosity** |
1500 +500 cPs at 77 °F (25 °C) at 60 rpm |
| Freeze Point |
24 °F (-4 °C) |
| Storage/Operating Range |
35 °F to 120 °F (2 °C to 49 °C) |
| *Brookfield Spindle #4 30 rpm |
| **Brookfield Spindle #4 60 rpm |
| FM Approved viscosity |
| Shear rate (1/s) |
Viscosity (Cp) |
| 5 |
2693 |
| 10 |
1640 |
| 20 |
1014 |
| 50 |
558 |
| 100 |
365 |
| 600 |
151 |
| Note: Brookfield RST-CC rheometer with CCT-40 spindle |
Approvals, Listings, and Standards
CHEMGUARD NFF-332 Non-Fluorinated Foam Concentrate is
intended for use on both types of Class B fires: hydrocarbon
fuels with low water solubility, such as gasolines, diesel fuels,
and aviation fuels; and polar solvent fuels with appreciable
water solubility, such as methyl and ethyl alcohol, isopropyl
alcohol, acetone, and esters.
CHEMGUARD NFF-332 is FM 5130 Approved on a large range of
flammable liquids such as heptane, hexane, gasoline, kerosene
(JET-A), ethanol, acetone, and isopropanol.
CHEMGUARD NFF-332 is FM 5130 Approved for use with
upright and pendent 5.6 k (80), 8.0 k (115), 11.2 k (160), and K17
(240) sprinklers on hydrocarbon and polar fuels. This concentrate
can be ideal for fixed and semi-fixed foam systems using sprinklers,
nozzles, and other standard discharge devices for applications
such as the following examples:
-
FM Approvals - FM 5130
- This concentrate is only FM Approved in conjunction
with the specific proportioning equipment and discharge
devices as shown in the Approval Guide
(www.ApprovalGuide.com)
-
EN 1568: 2018
- GreenScreen Certified™ Silver firefighting foam concentrate

Application
CHEMGUARD NFF-331 foam concentrate is intended for use on both types of Class B fires: hydrocarbon fuels with low water solubility, such as crude oils, gasolines, diesel fuels, and aviation fuels; and polar solvent fuels with appreciable water solubility, such as methyl and ethyl alcohol, isopropyl alcohol, acetone, esters, and methyl ethyl ketone. The concentrate also has excellent wetting properties that can effectively combat Class A fires. It may also be used in conjunction with dry chemical agents to provide even greater fire suppression performance.
CHEMGUARD NFF-331 foam concentrate is UL listed for use with upright and pendent 5.6 k, 8.0 k and 11.2 k sprinklers on hydrocarbon and polar fuels. This concentrate can be ideal for fixed and semi-fixed foam systems using sprinklers, nozzles, foam chambers, and other standard discharge devices for applications such as:
- Industrial chemical and petroleum processing facilities
- Fuel or chemical storage tanks
- Truck or rail loading and unloading facilities
- Flammable liquid containment areas
- Aircraft hangars
- Flammable liquid warehouse storage facilities
- Mobile equipment
CHEMGUARD NFF-332 Non-Fluorinated Foam Concentrate has
excellent wetting properties that can effectively combat Class
A fires. It may also be used in conjunction with dry chemical
agents to provide even greater fire suppression performance.
Foaming Properties
CHEMGUARD NFF-332 Non-Fluorinated Foam Concentrate may
be effectively applied using most conventional foam discharge
equipment at the correct dilution with fresh, salt, or hard water.
CHEMGUARD NFF-332 requires low energy to foam. The foam
solution may be effectively applied with conventional aspirating
and non-aspirating discharge devices at the correct dilution with
water. Air-aspirating discharge devices typically produce expansion
ratios from 4:1 to 10:1, depending on the type of device and the
flow rate. Non-air-aspirating devices, such as handline water fog/
stream nozzles or standard sprinkler heads, typically produce
expansion ratios from 2:1 to 4:1.
| Typical Foaming Characteristics* |
| Water |
Fresh |
Salt |
| Proportioning Rate |
3% |
3% |
| Expansion Ratio |
9.4:1 |
8.6:1 |
| 25% Drain Time (min:sec) |
79:00 |
59:00 |
| 50% Drain Time (min:sec) |
106:00 |
79:00 |
| *per EN 1568-3 |
Storage and Handling
Store CHEMGUARD NFF-332 Non-Fluorinated Foam Concentrate
in the original supplied package (totes, drums, or pails) or
in the recommended foam system equipment as outlined in
the Johnson Controls Technical Bulletin, Storage of Foam
Concentrates. Maintain the concentrate within the recommended
operational temperature range and avoid freezing the product.
Factors that affect the foam concentrate's long-term effectiveness
include temperature exposure and cycling, storage container
characteristics, air exposure, evaporation, dilution, and
contamination.
The effective life of CHEMGUARD NFF-332 can be maximized
through optimal storage conditions and correct handling.
CHEMGUARD foam concentrates have demonstrated effective
firefighting performance with contents stored in the original
package under correct conditions for more than 10 years. This
product should not be mixed with other types of foam concentrates
or other manufacturers' foam concentrates under any
circumstances. The use of multiple, separately applied finished
foam products for incident response is appropriate.
Inspection
CHEMGUARD NFF-332 Non-Fluorinated Foam Concentrate is
subject to stringent quality controls throughout production, from
incoming raw materials and inspection to finished product
testing.
CHEMGUARD NFF-332 Non-Fluorinated Foam Concentrate
should be inspected periodically in accordance with NFPA
11, EN 13565-2, or other relevant standards. A representative
concentrate sample should be sent to Johnson Controls Foam
Analytical Services or other qualified laboratory for quality
analysis in accordance with the applicable standard. An annual
inspection and sample analysis is typically sufficient, unless the
product has been exposed to unusual conditions.
CHEMGUARD NFF-332 is a Non-Fluorinated Firefighting Foam
Concentrate, meaning that it does not have any intentionally
added PFAS chemistry and is produced in equipment that has
not handled PFAS chemistry. CHEMGUARD NFF-332 complies
with Directives (EU) 2017/1000 on PFOA and 2019/1021 (EU
POPs directive), and EU2024/2462 on PFHxA.
CHEMGUARD NFF-332 has been subjected to OECD 301F testing and after 28 days is considered inherently biodegradable.
Proportioning
The recommended operational temperature range for CHEMGUARD
NFF-332 Non-Fluorinated Foam Concentrate is 35 °F to 120 °F (2 °C
to 49 °C) in accordance with FM 5130.
Table 4 lists the approved range of equipment validated for
CHEMGUARD NFF-332 Non-Fluorinated Foam Concentrate
against the FM 5130 standard.
| Typical Foaming Characteristics* |
| Sprinklers |
K5.6 (80) |
Upright |
TY3131 - TY3151 - TY315 - TY313 |
| Pendent |
TY3231 - TY3251 - TY325 - TY323 |
| K8.0 (115) |
Upright |
TY4131 - TY4151 |
| Pendent |
TY4231 - TY4251 |
| K11.2 (160) |
Upright |
TY5130 - TY5150 - TY5111 - TY5131 - TY5151 |
| Pendent |
TY5211 - TY5231 - TY5251 |
| K17 (240) |
Upright |
TY7151 |
| Pendent |
TY7251 |
| Foam nozzles |
B1 K3.0 (43) |
| Foam pourers |
FLR models 30 and 90 |
| Handline nozzle |
HL models 60 to 95 and 120 |
| Proportioning equipment |
Ratio flow controllers 2 in. up to 8 in. |
| Proportioning equipment |
Wide range proportioner TPW MK3 6 in. and 8 in. |
| Bladder tanks |
Vertical and horizontal all sizes |
| Hydraulic foam valve |
HCCV supervised models 1 in. up to 2 1/2 in. |
Ordering Information
CHEMGUARD NFF-331 foam concentrate is available in pails, drums, or totes.
| Part No. |
Description |
Shipping Weight |
| Pails |
| A16382V667* |
5 gal (19 L) |
50 lb (23 kg) |
| A16382VB5F** |
5 gal (19 L) |
50 lb (23 kg) |
| Drums |
| A16382VB58* |
55 gal (208 L) |
541 lb (246 kg) |
| A16382VB5G** |
55 gal (208 L) |
541 lb (246 kg) |
| Totes* |
| A16382VB59* |
265 gal (1003 L) |
2621 lb (1189 kg) |
| A16382VB5H** |
265 gal (1003 L) |
2621 lb (1189 kg) |
*Manufactured in the United States of America
**Manufactured in Europe
|
Safety Data Sheets (SDS) are available at www.chemguard.com
Note: While NFF (also known as SFFF) agents may be compatible with
existing AFFF and/or NFF hardware, system contamination from fluorinated
agents may exist if hardware and piping is not replaced upon conversion to
non-fluorinated agents.
Note: The converted values in this document are provided for dimensional reference only and do not reflect an actual measurement.
The GreenScreen Certified Logo and word marks are certification marks of Clean Production Action, Inc.
CHEMGUARD, and the product names listed in this material are marks and/or registered marks. Unauthorized use is strictly prohibited.