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Wet Chemical Fire Extinguishers And Their Uses

Fire extinguisher,Fire Extinguisher Types, Extinguishers


With Sydney being the hottest place on Earth a few days ago and bushfires running rampant around the nation, we should all be aware of the dangers inherent in extremely hot weather. Unfortunately, there’s little we can do about the weather, but we can certainly take preventative measures to try to avoid adverse consequences during the hotter months.

Staying out of the sun and keeping hydrated are effective ways in dealing with hot weather, however it’s equally important to take measures to ensure your home stays safe from fires. Being the most dangerous time of year, now is an ideal time to test your smoke detectors and other fire fighting equipment around your home to ensure they are in good working condition.

Common Household Fires

While bushfires cause enormous amounts of damage to both land and property, most people don’t realise that the most common cause of household fires actually occur in the kitchen. Cooking or grease fires are extremely dangerous because many people think that they can extinguish them with water, which only causes the fire to spread to other areas of the kitchen, amplifying an already dangerous situation. The most effective ways to extinguish cooking fires is either using a Fire Blanket, or a Wet Chemical Fire Extinguisher. There are a number of aspects to consider when using Wet Chemical Fire Extinguishers.

Before we delve into this topic, it’s important to understand basic fire safety and what to do in the event of a fire. Alerting the Fire Department and evacuating all occupants from your house is the first thing you should do before trying to extinguish a cooking fire. Furthermore, you should only use a fire extinguisher if you have been trained in its proper use. If you’d like a refresher video to jog your memory, then click here.

Classes of Fires

In addition to basic fire safety, it’s equally important to recognise the different classes of fires so you’re aware of which fire extinguishers are suitable for certain types of fires given that using the wrong fire extinguisher can be very harmful.


Class A – Carbon based materials, for example wood, plastic, paper, and rubber

Class B – Combustible and flammable liquids, for example oil, petrol, and paint

Class C – Combustible gases, for example butane, methane, and propane

Class D – Combustible metals, for example aluminium and magnesium

Electrical fires – Electrical equipment, for example toasters, computers, and hair dryers

Class F – Cooking fires, for example lard, fats, and vegetable oils


Types of Fire Extinguishers

In Australia, there are five types of fire extinguishers available for different classes of fires. The following table lists each of these fire extinguishers, how to differentiate between different fire extinguishers, and which extinguishers are suitable for certain classes of fires.


Type of Fire ExtinguisherColour of BandSuitable For

(Classes of Fires)

Wet ChemicalOatmealA, F
FoamBlueA, B
CO2BlackB, Electrical fires
WaterNone (All Red)A
Dry PowderWhiteA, B, C, Electrical fires


Wet Chemical Fire Extinguishers

The most important thing to understand about Wet Chemical Fire Extinguishers is that they are the only fire extinguisher that can suppress a cooking fire. Considering that cooking fires are the leading cause of household fires, it’s definitely a wise idea to have this type of fire extinguisher located at the entrance of your kitchen. Wet Chemical Fire Extinguishers are also effective at extinguishing Class A fires, such as paper, wood, rubber, plastic, and textiles, which are other common source of household fires.

Certified & Approved to AS/NZS 1841.3, Wet Chemical Fire Extinguishers contain a solution of potassium acetate, which is sprayed out in a fine mist when discharged. The mist quickly extinguishes the flames, cools down the burning oil and chemically reacts to seal the surface with a soapy substance which prevents the fire from reigniting. Importantly, the solution contained in Wet Chemical Fire Extinguishers also helps to prevent splashing the oil to other areas of the kitchen.

Wet Chemical Fire Extinguishers are versatile fire extinguishers that can avert enormous amount of damage to your property. If you don’t already have a Wet Chemical Fire Extinguisher in your kitchen, then you’re not only missing out on a great investment, but you’re also putting your loved ones at risk. For a wide variety of fire extinguishers at affordable prices, contact King Fire Protection Solutions on 1300 344 966 or visit to see the whole range.