POWDER FOR D-CLASS METAL FIRES
Metal fires pose special problems to the fire fighting operations. Water or foam cannot be used as fire extinguishing agent because many metals react violently with water even at room temp. Ordinary dry chemical powders are not suitable for fighting metal fires.
KV – LITE CLASS-D is a metal salts based dry powder specially formulated for metal fires. It is treated with speciality chemicals to impart free flow and water repellency.
KV-LITE CLASS-D fuses at temp. of above 600 °C and has high latent heat of fusion. The powder melts by absorbing s heat from the burning metal. It then forms a layer on the metal surface which is strong and provides a blanketing effect. Oxygen supply & heat radiation are thereby cut off from the burning metal surface. Anionic radicals of powder react with the free radicals of metals responsible for the fire propagation, this results into retardation of fire propagation chain reaction.
KV-LITE CLASS -D is found suitable for all Class D fire risk including light metals like Li, Na, K, Mg , etc and their alloys. It may be used even for small oil fires.