M1- 4 Forest ---------------------------------------------------------------------------->>  
Special use for forest:
Forest fire is a free combustion phenomena caused by the out-of-control forest combustion. All organic and inorganic substances contained by forest can combust and burn; they are usually known as the forest combustibles. Generally forest combustibles are divided into:

    Underground combustible: humics, peats and roots that are decomposed or semi-decomposed beneath litterlayer. The fire caused by underground combustible is known as the underground fire (smoldering fire), featuring in slow combustion speed, long combustion time, high temperature, and huge extinguishment difficulty. Such type of fire may cause great loss to forest, trees and woods.

    Surface combustible: all combustibles that are available between the litter layer and the above height of 1.5m, including deadwood, fallen leaves, weed, low bush, treelet, overturned tree and stump. The fire caused by surface combustible is known as the surface fire, featuring in quick combustion speed and easy extinguishment.
    Forest combustible: all combustibles above the height of 1.5m away from the ground, including deadwood of trees. The fire caused by forest combustible is known as the crown fire, featuring in high extinguishment difficulty, and easiness of forming fierce fire, flying fire, fire typhoon and fire storm if high wind is available.
 
Forest fire (An'ning, Yunan)
USA Arizona fire
Jiangxi series fire
 
After forest cover burns, fire may spread around. Through heat convection, radiation and conduction, fire extends and spreads continuously; such combustion phenomenon is known as the fire spread.For forest fire,
M1-4 plants active flame retardant agent are characterized in:
Changing combustion quality of substances
    M1 plants active flame retardant agent contains a certain content of compound flame-retardant active substances. Since these substances have the capability of changing combustion quality of other substances, they can produce strong affinity with combustion substances quickly when they contact with combustion substances, and then make chemical realization to achieve penetration and emulsification. Whilst making double penetration and emulsification, the compound flame-retardant active substances are melted in the emulsified substances, and thence their original combustion quality is changed, which make these substances lose their combustibility and inflammability, and finally become the nonflammable, fire-retardant and nonflammable substances. Just like this, the change in the combustion quality of substances causes the combustion to cease.
Extinguishing smoldering fire
    M1 plants active flame retardant agent, since its good permeability, can quickly and easily go into leaves, branches and deadwoods to extinguish fire and prevent after-combustion.
Non-toxic and environmental protection
    M1 plants active flame retardant agent is made from plants, it is non-toxic and environmental friendly, so its application won't affect growth and ecological environment of plants.