Ammonium Polyphosphate (APP) Phase II: High-Efficiency Halogen-Free Flame Retardant for Polymers
Discover the superior fire safety performance of Ammonium Polyphosphate (APP) Phase II, a leading halogen-free flame retardant. Ideal for plastics, coatings, and textiles, this phosphorus-nitrogen synergist offers exceptional intumescent properties and a commitment to environmental safety. Explore its applications and benefits as a trusted manufacturer and supplier.
Get a Quote & SampleUnlocking Enhanced Fire Safety with APP Phase II

Ammonium Polyphosphate (APP) Phase II
As a leading supplier and manufacturer in China, we offer Ammonium Polyphosphate (APP) Phase II (CAS: 68333-79-9), a high-performance, halogen-free flame retardant. Its unique phosphorus-nitrogen synergy provides excellent intumescent properties, contributing to the formation of a protective char layer during combustion. This results in significantly reduced flammability, low smoke generation, and favorable thermal stability, making it a preferred choice for applications demanding stringent fire safety standards. We provide reliable supply and technical support for various polymer formulations.
- Superior Halogen-Free Flame Retardancy: Effectively inhibits combustion without releasing toxic halogenated by-products, ensuring a safer working and end-use environment.
- High Thermal Stability & Low Water Solubility: APP Phase II exhibits excellent resistance to heat and moisture, crucial for long-term performance in demanding applications.
- Efficient Intumescent Action: When exposed to heat, it expands and forms a carbonaceous char layer, acting as a thermal barrier and preventing further material degradation.
- Broad Compatibility with Polymers: Our Ammonium Polyphosphate is designed for excellent dispersion and compatibility with polyolefins (PP, PE), PVC, polyurethanes, epoxies, and other engineering plastics, ensuring minimal impact on mechanical properties.
Key Advantages of Our Ammonium Polyphosphate
Environmentally Friendly Formulation
Our APP Phase II is a halogen-free solution, aligning with global environmental regulations and the growing demand for sustainable chemical additives. Rely on us as your trusted supplier for greener chemical solutions.
Exceptional Fire Performance
Achieve UL 94 V-0 ratings and enhanced fire resistance in your polymer compounds and coatings. Explore how our bulk quantities and competitive price points make advanced fire safety accessible for your manufacturing needs.
Optimized for Industrial Applications
Designed for optimal performance in plastics, coatings, textiles, and construction materials. Partner with a dedicated manufacturer for consistent quality and reliable supply chains for your critical applications.
Diverse Applications for Advanced Fire Protection
Polymer Modification
Enhance the flame retardancy of polyolefins, PVC, polyurethanes, and epoxy resins. Our products are key for manufacturers seeking to improve the fire safety of plastic components used in electronics, automotive, and construction.
Intumescent Coatings & Paints
Formulate advanced intumescent coatings and paints for steel structures, wood, and textiles. As a reliable supplier, we ensure consistent particle size and purity for optimal char formation and fire resistance.
Textile Treatments
Impart flame retardant properties to fabrics for upholstery, protective clothing, and industrial textiles. Manufacturers can rely on our efficient production capacity to meet large-scale demands.
Construction Materials
Improve the fire resistance of building materials, adhesives, and sealants. Our APP is crucial for creating safer construction environments, and we are a dependable manufacturer ready to discuss bulk purchase options.