... , good flameproof effect;2. high polymerization degree, low solubility in water and low hygroscopicity;3. pH is near to neutral ... treatment for multistory building, ships, trains, cables, etc. 2. used in the flameproof treatment for woods, plywood, fiberboard, papers, fibers, etc ... etc.4. make into powder extinguishing agent to be used in large-area outfire for forest, oil field and coal field, etc ...