Fire Retardant Paint For Wood are made out of special chemicals that lower the spread of fire. These additives in the fire retardant paint are made out of phosphorus or nitrogen compounds and they thus react when exposed to extreme heat/ fire, leading to the formation of an oxygen-starved environment. For those who do not know, without oxygen, heat, and fuel, fire cannot start, and thus the spread of fire rapidly comes under control in the oxygen-less environment.