Which extinguisher is both noncorrosive and effective for paint thinner fires?

The Mono Ammonium Phosphate extinguisher is effective for paint thinner fires due to its versatility in combating various types of fires, particularly those classified as Class B fires, which include flammable liquids. Its chemical composition allows it to smother flames effectively and interrupt the chemical reaction necessary for combustion.

Additionally, it is noncorrosive, which means it does not damage equipment or surfaces after usage. This quality is particularly important when dealing with volatile substances like paint thinners, as any corrosive material could lead to further complications or damage in the aftermath of a fire.

In contrast, other extinguishers may be more suited for specific types of fires or could be corrosive, which would not be ideal for effectively handling a paint thinner fire without causing additional damage or hazards.