Class D extinguishers are designed to extinguish fires caused by combustible metals that cannot be extinguished with water or other conventional extinguishing agents.

Some of the most common metals that can cause Class D fires include:

• Magnesium
• Titanium
• Sodium
• Potassium
• Aluminum
• Lithium

These metals have a high combustion capacity and, when in contact with water or certain chemicals, can react violently and worsen the fire. Class D extinguishers contain special dry powder that smothers the fire, isolating the hot metal from oxygen and preventing the fire from spreading.

Recommendations for customers who should purchase Class D extinguishers:

1. Metallurgical industries:
   Metal foundries, alloy mills or any company that works with metals such as magnesium, titanium or aluminum should have Class D extinguishers. These metals can cause high intensity fires when subjected to high temperatures, so it is essential to have the right extinguishers in these areas.
2. Magnesium production plants:
   Magnesium plants are prone to Class D fires due to the high flammability of magnesium. Powdered magnesium, in particular, is highly reactive and can easily ignite, so Class D extinguishers are crucial in this type of facility.
3. Aerospace industry:
   Companies that handle titanium, aluminum and other combustible light metals in the manufacture of aircraft or aerospace parts must have Class D extinguishers. These metals are used because of their strength, but they also present a high fire hazard.
4. Laboratories and research workshops:
   In laboratories researching metallic materials or in machine shops using alloys or metals that may be flammable (such as lithium or sodium), Class D extinguishers are a vital preventive measure for the safety of facilities and workers.
5. Metal recycling centers:
   Facilities that process waste metals such as aluminum, magnesium or titanium, or recycle electronics containing these metals, need Class D extinguishers due to the risk of unexpected fires caused by these materials.
6. Automotive industry:
   Automotive factories that handle or use metals such as aluminum or magnesium in their manufacturing processes must also have Class D extinguishers, especially in areas where these metals may be exposed to heat or conditions conducive to combustion.
7. Battery laboratories:
   Companies that manufacture lithium batteries, such as those used in electric vehicles or electronic devices, must be prepared for Class D fires, as lithium is extremely flammable and requires special treatment for extinguishing.