ammonium polyphosphate (n>30)
white fine powder
98% pass through 325 mesh
|decomposed temp. on heat
is non-tocxic fire retardant ， but you should wear defence for it is very tiny powder
ammonium polyphosphate can be used alone or work with other fire retardant of fire-refractory coating ofr steel structure, boatm train, housecoating, carble, woofd and fiber, it is also applied in PE, PP, PVC rubber, or the fire fight of forest and oil well.
25kg in PE lined woven bag ， avoid moisture， valid period 12 months