Ammonium Polyphosphate (APP) Intumescent Flame Retardant for Cable & Plastic Applications

Ammonium Polyphosphate (APP) is a high-performance intumescent flame retardant designed for cable compounds, plastics, coatings, and rubber products. It works by promoting char formation during combustion, effectively reducing heat release, smoke generation, and improving overall flame retardant performance.

This white powder contains ≥45% P₂O₅ and ≥24% nitrogen, ensuring efficient intumescence and thermal stability. APP is highly compatible with a wide range of polymers and exhibits low toxicity, making it suitable for environmentally friendly flame-retardant applications. Its near-neutral pH (7.0–8.0) ensures minimal impact on polymer processing and maintains mechanical properties of finished products.

Key product characteristics:

• High-efficiency intumescent flame retardant
• Promotes char formation to reduce heat and smoke
• Excellent thermal stability for high-temperature processing
• Low toxicity and environmentally friendly
• Compatible with cable compounds, plastics, coatings, and rubber
• White powder with stable quality and uniform particle size

APP is widely applied in fire-safe cables, PVC and PE compounds, coatings, and other polymer systems where reliable flame retardancy is required.

Packing: 25kg/bag
Storage: Conventional storage
Shelf life: 2 years under proper storage conditions
Handling: Store in a cool, dry, and well-ventilated warehouse. Avoid moisture and direct sunlight. Keep the package tightly sealed after opening to prevent moisture absorption.

1. High Flame Retardant Efficiency

APP promotes intumescence, forming a protective char layer that effectively reduces heat release, smoke, and flame spread.

2. Excellent Thermal Stability

It withstands high-temperature processing conditions without decomposition, maintaining polymer performance and mechanical properties.

3. Environmentally Friendly

Low toxicity and non-halogenated formulation make APP suitable for environmentally safe and sustainable applications.

4. Wide Polymer Compatibility

Compatible with PVC, PE, rubber, coatings, and other plastic systems, providing uniform dispersion and consistent flame retardant performance.

5. Reliable Quality & Consistent Supply

High purity and controlled particle size ensure batch-to-batch consistency, stable processing, and predictable performance for industrial applications.

1. Cable & Wire Compounds

• Flame-retardant insulation and sheathing for power and communication cables

• Suitable for low-smoke, halogen-free cable applications

2. Plastics & Rubber

• PVC and PE sheets, profiles, and molded parts

• Rubber compounds for fire-resistant applications

3. Coatings & Industrial Materials

• Flame-retardant coatings for building materials

• Intumescent systems for plastics and composites

APP ensures reliable char formation, heat reduction, and smoke suppression for safe and durable polymer products.

Maijisen is a technology-focused manufacturer of plastic processing additives, located in Kunshan City, Jiangsu Province. Established in 2009, Maijisen operates a domestic division in Kunshan and an international division in Shanghai, with 12,000㎡ production facilities and a 400㎡ R&D laboratory in Yancheng.

Our main products include Ca/Zn stabilizer, ACR processing aid, PVC processing aid, PVC foaming regulator, AC/NC foaming agent, lubricant and other innovative chemical additives. These products are widely used in PVC/WPC window profiles, foam boards, wall boards, WPC/SPC/LVT flooring, PVC pipes, cables, wires and footwear.

Guided by the philosophy of “Technology as the core, Quality as the root, Win-win cooperation,” Maijisen continuously develops new solutions through technical collaboration with research institutions. We warmly welcome your visit and long-term partnership.

Q1: What is the MOQ?

A: MOQ is about 1tons.

Q2: What if your payment term?

A: Payment terms: 100% by T/T ,30% by T/T and 70% by L/C.

Q3: What about the delivery ?

A: Delivery date: 10 days.

Q4: Can you supply free samples?

A: Of course, we can supply you 200g~500g per product.