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Wet Chemical Fire Extinguishers

Wet Chemical Extinguishers are suitable for use on Class A & F Fires. These ranges of extinguishers are specialists in regards to cooking fires caused by fat and oils.

Extinguishers such as Water, Foam, Powder & CO2 will not always put out big cooking fires and are also extremely dangerous because the pressure of these extinguishers can cause the oil to jet out and cause serious harm.

Available in Sizes: 6Ltr

How do Wet Chemical Extinguishers work?

Wet Chemical Fire Extinguishers contains a solution of potassium which effectively attacks the flame in two methods:

Firstly the mist cools the fire and lowers the temperature to stop the fire spreading, also prevents splashing of the hot oils/fat.

Secondly the potassium salts react with the hot oil and causes the process of saponification, coating the surface of the cooking oil or fat in soapy foam that is non combustible and acts as a barrier between the fat and oil.

Where are Wet Chemical Extinguishers most suitable for use?

Wet Chemical Fire Extinguishers are ideal for Restaurants and Kitchens being for use on fats and oils..

Wet Chemical Fire Extinguishers–Suitable/Not Suitable for use on the below classes/types of fires

Wet Chemical Extinguisher Class Types

Foam Fire Extinguishers

Identifying a Wet Chemical Fire Extinguisher

Wet Chemical Extinguishers are easily identifiable by their Yellow Label, as seen in the below image. Their main body should be Red, to conform with British Standards, and they should have a Large Yellow Banner across the top on the front of the extinguisher with Red writing stating "Wet Chemical".

Wet Chemical Fire extinguishers that are manufactured to BS EN 3 should have a red body (RAL 3000) and a yellow band covering 5-10% of the fire extinguishers surface area.

Wet Chemical Extinguisher Knock Down Ratings:

Size & Type of Extinguisher

Class A

Class A

Class B

Class B

Class C

Class C

Class D

Class F

Class C


Class C
6 Ltr Wet Chemical Extinguisher 13A Not Suitable Not Suitable Not Suitable 75F Not Suitable

Please Note:

The information within our resources pages is copyrighted to SAFE I.S. Ltd. It is designed to give you a basic knowledge but you are responsible to check the relevant British Standards and guidelines for updates.

Wet Chemical Fire Extinguishers