Low Density AP422 CROS484 Equal Type Ammonium Polyphosphate

Place of Origin CHINA
Brand Name TFCARE
Certification SGS, REACH, ISO
Model Number TF-241
Minimum Order Quantity 25KGS
Packaging Details 25kg/bag or 1mt /bag , 20mt/fcl with pallets
Delivery Time 10-15days
Payment Terms T/T, L/C, D/P, Western Union
Supply Ability 200mt/month

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Product Details
Fire Retardant UL94 V-0 Appearance White Powder
Addition Volume About 22% FR Type Intumescent
Eco-freindly Halogen-free Mechanical Properties Good
Density Low Smoke Low Smoke Generation
Heavy Metal No Heavy Metal Ions
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Equal Type Ammonium Polyphosphate


Low Density Ammonium Polyphosphate


AP422 CROS484 Ammonium Polyphosphate

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Product Description

Halogen-Free Intumescent Flame Retardant For PP UL94 V-0 GWIT 960 Similar Application With AP760 From Clariant


PP with 22% TF-241 can pass the tests of UL94 V-0(3.0mm) and GWIT 960℃.


TF-241 is a white free flowing powder. It is a halogen-free additive flame retardant based on ammonium polyphosphate which develops its effectiveness through phosphorus and nitrogen synergism. 


TF-241 differs in its mode of action from chlorine or bromine containing flame retardants by achieving its effect through intumescece. The flame retardanted material foams on exposure to flame. The carbon foam layer so formed protects the polymer through its heat-insulating effect and reduces further oxygen access. 


Technical Data Sheet / Specification:

Specification TF-241
Appearance White powder
P2O5 content (w/w) ≥52%
N content (w/w) ≥18%
Moisture (w/w) ≤0.5%
Bulk density 0.7-0.9 g/cm3
Decomposition Temperature ≥260℃
Average particle size ( D50) about 18µm


Characteristics :
1. White powder, good water resistance.

2. Low density, low smoke generation.
3. Halogen-free and none heavy metal ions.



TF-241 is used in homopolymerization PP-H and copolymerization PP-B . It is widely used in

flame retardant polyolefin like steam air heater and household appliances.


Reference Formula (UL94 V0):

Material Formula S1 Formula S2
Homopolymerization PP (H110MA) 69.3  
Copolymerization PP (EP300M)   69.3
Lubricant(EBS) 0.2 0.2
Antioxidant (B215) 0.3 0.3
Anti-dripping (FA500H) 0.2 0.2
TF-241 30 30


Mechanical properties:

Item Formula S1 Formula S2
Vertical flammability rate V0(1.5mm) UL94 V-0(1.5mm)
Limit oxygen index (%) 30 28
Tensile strength (MPa) 28 23
Elongation at break (%) 53 102
Flammability rate after water-boiled (70℃,48h) V0(3.2mm) V0(3.2mm)
V0(1.5mm) V0(1.5mm)
Flexural modulus (MPa) 2315 1981

Melt index


6.5 3.2


Packing : 25kg/bag, 22mt/20’fcl without pallets, 17mt/20’fcl with pallets. Other packing as request.


Storage: in dry and cool place, keeping out of moisture and sunshine, shelf life two years.


Low Density AP422 CROS484 Equal Type Ammonium Polyphosphate 0Low Density AP422 CROS484 Equal Type Ammonium Polyphosphate 1