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PhosGard® APP-311
Blend of fine and crystal phase II Ammonium Polyphosphate.
PhosGard APP-311 is an intumescent blend of Phosphorus and Nitrogen with phosphorus content of 18-21% and Nitrogen content of 21-23%. The nitrogen present in PhosGard APP-311 aids in char formation and hence acts as an intumescent flame retardant. PhosGard APP-311 is especially effective as a non-halogenated flame retardant in thin films and polyolefins.
Specifications
Appearance: Fine white powder Phosphorus content: 18 to 21% Nitrogen content: 21 to 23% Moisture: ≤0.20% Solubility in water, @ 25°C (g/100 ml): ≤0.5% pH value: 8 to 9 Particle size, D50: 10-12 microns
Primary Chemistry: Ammonium Polyphosphate
Features & Benefits
Low cost Fine particle size Compatible with a wide variety of resins Helps in Char formation
Problems Solved
High cost of fine particle size ammonium polyphosphates Use restrictions of halogenated flame retardant in thin films and polyolefins
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