ISO ABC Dry Chemical Powder for Fire Extinguisher ISO ABC Dry Chemical Powder for Fire Extinguisher
ISO ABC Dry Chemical Powder for Fire Extinguisher ISO ABC Dry Chemical Powder for Fire Extinguisher


ISO ABC Dry Chemical Powder for Fire Extinguisher

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Marco's ISO ABC dry chemical powder is a potent fire-extinguishing agent with ammonium phosphate salt as the base ingredient. There are two product variants based on the percentage of ammonium phosphate in the chemical formulation.
One type comprises 25%-65% while the other comprises 65%-90% ammonium phosphate. The ISO ABC dry chemical powder formula also includes silicone oil, a moisture-proof agent, a flow enhancer, and an anti-caking agent.


Marco's ISO ABC Dry Chemical Powder is suitable for putting out Class A, B, and C fires. Class A fires involve and use solid substances such as wood, fabric, paper, and plastics as fuel. Class B fires involve liquids that are flammable and gasses like alcohol, grease, propane, ether, or gasoline. Class C fires involve electrical wiring and electronic appliances and equipment.

ISO ABC Dry Chemical Powder extinguishes these types of fires immediately and efficiently. It can be used with portable and trolley-type dry powder fire extinguishers as well as dry powder fire vehicles.

The product can also be used together with fluoro-protein and light water foam fire extinguishing agents for tackling large-scale petroleum product fires. It is well suited for application in petrochemical enterprises, chemical plants, ships, oil depots and refineries, substations, and more.

Features of ISO ABC Dry Chemical Powder

  • Powerful and efficient fire extinguishing capabilities suited for a wide range of fires (Class A, B, and C).

  • Excellent fluidity due to its flow-enhancing agent. The product does not cake or lump easily.

  • The formulation utilizes high quality chemically stable ingredients.

  • Good electrical insulation performance and low-moisture rate make it safe and effective for type C fires.

  • East refill, long storage period, and non-toxicity to humans and animal


Specifications of ISO ABC Dry Chemical Powder



Ammonium phosphate content

25%-65% and 65%-90%

Main content tolerance

±2.0 and ±3.0

Bulk Density(g/ml)


Fluidity Test

Not exceeding 8s average flow time

Resistance to Caking and Lumping

No lumps retained on a 425µm sieve

Water Repellency

No complete absorption of water drops seen

Moisture Content




Electrical Insulation value

5.00Kv MIN

ISO ABC dry chemical powder for fire extinguishers comes in a variety of packages. These include 25kg woven bags, 20kg plastic drums, 25kg cartons, and optional 1,000 and 1,100 kg bags.

Check out the Test Reports of Our ISO ABC Dry Powder 

certification of goods transportation MSDS-ABC 90% 2022-10

What raw material is used when making ABC powder?

The primary raw materials used when making ABC powder include silicon dioxide, pigment, silicon oil, ammonium phosphate, etc.

What is the purpose of using silicon oil?

A.      Preventing moisture absorption;

B.      Improves fluidity;

C.      Increased fire extinguishing properties.

What is the highest temperature that ABC powder can withstand?

ABC powder can withstand temperatures ranging from -30C-60C.

Which types of fires can ABC powder be applied to?

Class A fires, Class B fires, Class C fires.

What chemical reaction occurs when you mix ABC powder with an organic solution or other types of solutions, including water?

Mixing ABC powder with organic solutions destroys the silicon oil surrounding the particles. Adding water to the mixture causes the ABC powder to cake because it absorbs the water particles or moisture.

Can you mix BC powder with ABC powder in the same extinguisher?

ABC powder's main component is acidic ammonium phosphate, while that of BC powder is alkaline sodium bicarbonate. Mixing the two powders will cause them to lump up or cake, and the resultant gas could increase the fire extinguisher’s internal pressure. The fire extinguisher may rupture and blow when the increase in pressure becomes significant, and this could lead to damaged property or bodily harm.

How does Macro manage its product's quality control?

Macro conducts quality control throughout each step of the process, including sourcing raw materials and inspecting finished products. For instance, we sample each batch of raw materials for making ABC powder, ensuring it has the correct particle size and moisture content.

Next, we sieve test the semi-finished product during production and test for color and bulk density. The finished product's primary chemical content, hygroscopicity, and water repellency is also inspected.

The steel sheet's thickness is also tested when making fire extinguisher cylinders and inspect the neck ring’s thread. Our team test the semi-finished cylinder for leakage after welding and polishing it. Lastly, we also test for the cylinder's burst pressure and the thickness of the paint.

What makes Macro different?

Macro has been a professional OEM/ODM supplier of ABC powder for leading companies in over 20 countries. Our employers are valuable, and we aim to create a good workplace where employees are treated with respect, fairness, and dignity. We also listen to the market and place customers at the center of our services.