What are the advantages of ABC powder?

Views: 4     Author: Site Editor     Publish Time: 2023-03-23      Origin: Site

When it comes to fire safety, there are various types of dry chemical extinguishing agents available for use. One such agent is monoammonium phosphate, also known as ABC Dry Chemical. This versatile extinguishing agent is used on class A, class B, and class C fires. Its effectiveness lies in the specially fluidized and siliconized monoammonium phosphate powder it contains. But what are its advantages? Read on for more.

Typically, ABC dry chemical consists of a mix of monoammonium phosphate and ammonium sulfate. The former serves as the active component, while the latter is present in varying proportions depending on the local standards worldwide.

The mixture between the two agents is usually 40–60%, 60–40%, or 90–10%. In the United States, a similar mixture called Phos Chek G75F is utilized by the US Geological Survey.



Suppresses all fires

When it comes to putting out fires, dry chemical powder is the go-to solution for all classes of fires. This is because it works by coating the burning material with a thin layer of dust, thereby separating the fuel from the oxygen in the air. In addition, the powder interrupts the chemical reaction of fire, making it an extremely effective extinguishing agent.

Pressure is generated by gas cartridges stored inside the cylinder, and it can reach up to 3–4.5 meters (10–15 ft) with a force that lasts for 45 seconds.

Deals with common burning solids

Class A fires are caused by the burning of common combustible materials such as wood, paper, or most plastics. ABC dry chemical powder is an effective insulator for these types of fires, melting at approximately 180–200 °C (350–400 °F).

Can be used on both gases and liquids

For burning liquids and gases, such as gasoline, oil, propane, and natural gas, the powder breaks the chain reaction of the fire by coating the surface to which it is applied. These types of fires are classified as Class B in the American system and Classes B and C in the European and Australian systems.

ABC powder can put out electricity caused  fires

Electrical fires pose a different challenge, as equipment that conducts energy back to the user cannot be used. ABC dry chemical powder is an excellent solution as it is non-conductive and safe to use on electrical fires. Such fires are classified as Class C in the American system and Class E in the Australian system. It is important to note that electricity can also cause fires of the other classes.

Fits seamlessly in chimneys

Fire service personnel use chimney bombs, which are zip-lock bags or other small bags filled with ABC dry chemical powder, to extinguish chimney fires. These bombs work by being dropped directly down the chimney, where they explode upon contact with the flue bottom and heat of the fire, releasing the powder.

The natural chimney draft will then carry the dry chemical powder up the shaft of the chimney, coating the creosote and neutralizing the fire. Depending on the severity of the fire, multiple chimney bombs may be necessary.

Chimney bombs can also be effective if they are opened and then dropped down the chimney. Before using chimney bombs, it may be necessary to first unclog the chimney.

Where should you buy ABC powder

Looking for where to buy ABC powder? Look no further than Macro! With a passion for providing superior fire-fighting products, their UL listed Dry Chemicals 90% for Fire Extinguishers is their top product.

Featuring stable quality and easy refilling, this toxic-free product has high fire-extinguishing capacity. With a production capacity of 2 million pcs of fire extinguishers and 20,000 tons of dry chemical annually, Macro Fire meets your needs promptly and efficiently.

Their quality management system is certified by SGS according to ISO9001:2015, while OEM services cater to specific industry needs. And with advanced facilities, quality is guaranteed. Their products are exported to over 20 countries, with overseas markets accounting for 90% of sales.

When using their powder, avoid mixing different types to prevent caking and lumping, and gas pressure increase. Purchase in jumbo bag, woven bag, drum or carton, all standing on export type pallet. Collaborate with Macro Fire today and experience the difference.


In summary, ABC dry chemical powder is a versatile and effective extinguishing agent that can be used on various types of fires. Its ability to separate the fuel from the oxygen in the air and interrupt the chemical reaction of fire make it an excellent choice for extinguishing fires caused by common combustible materials, burning liquids and gases, and electrical equipment.

Additionally, chimney bombs can be used to help extinguish chimney fires by coating the creosote and neutralizing the fire.