# Dr. Sthamer vaPUREx AR 3/3 F-5 #8343 – Fluorine-Free Foam

- Link: https://fasco.pk/product/dr-sthamer-vapurex-ar-3-3-f-5-8343-2/
- Published: 2026-10-26T09:00:24+00:00
- Author: Fasco Pakistan

# Dr Sthamer vaPUREx AR 3/3 F-5 – Fluorine-Free Firefighting Foam

**Dr Sthamer vaPUREx AR 3/3 F-5** is an alcohol-resistant, fluorine-free firefighting
foam concentrate developed for demanding Class B fire risks involving flammable 
liquids. It is designed for applications where polar liquids, such as alcohols and
ketones, and non-polar hydrocarbons, such as petrol, diesel and kerosene, may be
present.

This specialist firefighting foam forms a stable, sealing foam blanket that helps
suppress flames and protect the fuel surface. Its alcohol-resistant formulation 
makes it suitable for industrial facilities and other high-risk environments where
reliable fire protection is essential.

## Key Features of vaPUREx AR 3/3 F-5

 * **Fluorine-free formulation:** Manufactured without intentional addition of organofluorine
   compounds for performance improvement, according to the manufacturer’s definition.
 * **Alcohol-resistant performance:** Designed for fires involving polar and non-
   polar flammable liquids.
 * **3% proportioning rate:** Intended for use at the specified 3% concentration,
   following the equipment and application requirements.
 * **Stable foam blanket:** Provides a cohesive layer designed to resist heat and
   air movement.
 * **Low- and medium-expansion applications:** Suitable for the foam types specified
   in the manufacturer’s product documentation.
 * **Freshwater and seawater compatibility:** Manufacturer documentation describes
   use with fresh and seawater.
 * **Tested performance:** The manufacturer lists testing to EN 1568:2018 and ICAO
   Level B performance for the relevant product variant.

## Applications

Dr Sthamer vaPUREx AR 3/3 F-5 may be considered for fire protection planning in 
environments such as:

 * Chemical processing and manufacturing facilities
 * Fuel storage and handling areas
 * Industrial sites handling flammable liquids
 * Marine and offshore facilities, where the system and approval requirements are
   met
 * Facilities storing or processing alcohols, solvents and hydrocarbon fuels

Always verify the specific product variant, fire risk, foam proportioning equipment
and applicable approvals before selecting the concentrate for an installation.

## Technical Specifications

 * **Product:** vaPUREx AR 3/3 F-5
 * **Manufacturer:** Dr. Sthamer, Germany
 * **Product reference:** #8343
 * **Foam concentrate rate:** 3%
 * **Foam expansion:** Low and medium expansion
 * **Lowest use temperature:** -5°C
 * **Maximum storage temperature:** +50°C
 * **Specific gravity at 20°C:** Approximately 1.030 ± 0.02 g/ml
 * **pH at 20°C:** 6.5–8.5
 * **Fire classes:** A and B, as stated in the product data sheet

Specifications and approvals can differ between product variants. Consult the current
manufacturer data sheet for confirmation before use.

## Why Choose Dr Sthamer vaPUREx AR 3/3 F-5?

For organisations looking for fluorine-free firefighting foam, vaPUREx AR 3/3 F-
5 offers an alcohol-resistant option designed for a range of polar and non-polar
liquid fire hazards. Its stable foam characteristics and documented testing make
it worth considering when assessing industrial fire suppression requirements.

**Contact FASCO** for product availability, pricing, technical documentation and
assistance identifying the appropriate firefighting foam for your application.