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简体中文Liquid Ammonium Polyphosphate
-- Steady & Reliable Manufacturer --
Introduction
Not every fire protection job calls for a powder. Liquid ammonium polyphosphate is an aqueous solution of ammonium polyphosphate that can be applied by spraying, dipping, or impregnation, or mixed directly into water-based formulations. It delivers phosphorus and nitrogen in a form that penetrates porous materials such as wood, paper, and textiles.
When heated, the polyphosphate releases phosphoric acid, which promotes char formation and creates an insulating barrier, while ammonia release helps dilute flammable gases. Because the product is already in solution, there are no dispersion steps or particle settling to manage, and dosing can be handled with standard liquid equipment.
We supply liquid APP in several concentrations and polyphosphate chain-length ranges, and can adjust grades for impregnation, coating, or additive use.
Specification
| Parameter | Typical Value |
|---|---|
| Appearance | Clear colorless to light yellow liquid |
| Chemical Type | Aqueous ammonium polyphosphate solution |
| Total P2O5 Content | 34% min (grade dependent) |
| Total Nitrogen (N) Content | 10% min |
| Polyphosphate Fraction | 60% min of total phosphate (grade dependent) |
| Density (20°C) | Approximately 1.38 to 1.42 g/cm³ |
| pH | 5.5 to 7.0 |
| Suggested Storage Temperature | 5 to 40°C |
| Packaging | 25kg HDPE cans, 250kg drums, or 1000kg IBC totes |
Values are typical and depend on grade. Storage containers should be plastic or corrosion-resistant. Safety data sheets and technical data sheets are available for each grade.
Application
Liquid APP is used wherever a water-based, penetrating, or easy-to-dose flame retardant is needed.
- Wood and wood-based panels: Impregnation and surface treatment of timber, plywood, and fiberboard.
- Paper, cardboard, and packaging: Fire-retardant treatment of paper products and corrugated board.
- Textiles and nonwovens: Finishing of natural fiber fabrics, curtains, and filter materials.
- Water-based coatings and adhesives: Phosphorus source for fireproof coatings and binders.
- Fire-retardant solutions and gels: Base ingredient in fire-blocking and fire-retardant liquid products.
Advantages
- Easy to apply: Sprayed, dipped, rolled, or injected with standard liquid handling equipment.
- Deep penetration: Dissolved phosphate moves into porous substrates for protection beyond the surface.
- No dispersion required: Mixes directly into water-based systems without milling or settling problems.
- Halogen-free: Phosphorus-nitrogen chemistry with low smoke and no halogenated gases.
- Adjustable grades: Concentration and chain length can be tuned to the application.
Manufacturing Facility in XUSEN
We have our own production workshops and warehouses, equipped with complete production and quality inspection equipment.
As China Liquid Ammonium Polyphosphate Suppliers and Liquid Ammonium Polyphosphate Factory., With over 20 years in developing halogen-free flame-retardant products positions us as industry leaders in providing domestic flame-retardant solutions.
All our products comply with the stringent requirements of the WEEE, ROHS, and EUP directives.
Rubber and Plastic Industry
Suitable for materials such as PA, PP, polyester, elastomers, PE, EVA, PC, ABS, etc., widely used in household appliances, automobiles, electricians, cables, and other products.
Composite Materials Field
Suitable for composite flame retardant products based on epoxy resin, polyurethane, etc., we can jointly develop flame retardant products with users to meet the requirements of flame retardancy and physical properties.
Adhesive Field
Suitable for oil-based and water-based adhesives, and can be modified according to customer needs to adapt to user usage conditions and requirements, while maintaining good weather resistance and dispersibility.
Fabric coating field
It is applicable to the flame retardant fabric coating based on acrylic lotion. The formula and process can be adjusted according to the user's requirements for flame retardancy, sizing amount, hand feel, etc. to meet the requirements for flame retardancy and physical properties.
Fireproof coatings field
In fireproof coatings, flame retardants are mainly used in APP. We have undergone specific processing techniques for coating APP, which can meet the quality requirements of well-known international manufacturers such as PPG and ICI.
