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Silane coated ammonium polyphosphate
Appearance: Fine white powder
Phosphorus content: ≥ 30%
Nitrogen content: ≥12%
Moisture: ≤0.25%
Solubility in water, @ 25°C (g/100 ml): ≤0.30%
pH value: 6 to 7.5
Particle size, D50: ≤18 microns
Primary Chemistry:
Phosphorus & Nitrogen blend
Conor Robertson, Technical Specialist
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PhosGard APP-SC is a fine particle crystal phase II modified Ammonium Polyphosphate with phosphorus content ≥30% and Nitrogen content ≥12% . The nitrogen present in PhosGard APP-SC aids in char formation and hence acts as an intumescent flame retardant. PhosGard APP-SC is effective as a non-halogenated flame retardant in water based coatings, polyurethanes, thermosets and polyolefins.
Domestic availability of silane coated ammonium polyphosphate flame retardants
Char formation and need for intumescent flame retardant in coatings and plastics
Thermosets
Water based coatings
Polyolefins
Polyurethanes
Flame retardants are used as reactive chemical additives in combustible polymers to prevent, delay, or slow the growth of a fire.
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