TF-PU501 ISO Rigid PU Foam APP Flame Retardant

Place of Origin CHINA
Brand Name Taifeng
Certification SGS, REACH, ISO
Model Number TF-PU501
Minimum Order Quantity 200kg
Price Negotiable
Packaging Details 25kg/bag or 1mt /bag , 20mt/fcl with pallets
Delivery Time 5-8days
Payment Terms T/T, D/P, L/C, Western Union
Supply Ability 300mt/month

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Product Details
Appearance Grey Powder Usage Flame Retardant
Application Rigid PU Foam Type Intumescent
Base Phosphorus-nitrogen
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rigid PU foam APP Flame Retardant


ISO APP Flame Retardant


TF-PU501 APP Flame Retardant

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Product Description

PU Flame Retardant APP Flame Retardant Halogen Free Fire Retardant For PU Wheel And Roller


Rigid Polyurethane foam (RPUF)  is recognized as the best thermal insulation material in the world , but the unflame-retardant polyurethane foam often causes fire . 


Rigid Polyurethane Foam has excellent physical and mechanical properties , electrical properties , acoustic properties and chemical corrosion resistance , and has a strong adhesion with a variety of materials . As a result , it is widely used as thermal insulation materials for chemical pipes , refrigeration equipment , transportation equipment and buildings . However , the oxygen index of unflame-retardant polyurethane hard foam is generally lower than 19 , which belongs to flammable materials and releases HCN , CO and other toxic gases in the combustion process . 


Ammonium polyphosphate (TF-PU501) is a halogen free flame retardant which can be used for RPUF.


Product description:: TF-PU501 is solid composite halogen-free phosphorus-nitrogen containing intumescent flame retardant, it acts both in the condensed phase and the gas phase.

Technical Data Sheet / Specification :

Specification TF-PU501
Appearance Gray powder
P2O5 content (w/w) ≥47%
N content (w/w) ≥8%
pH value (10% aqueous suspension, at 25ºC) 6.5-7.5
Moisture (w/w) ≤0.5%


Characteristics :
1. Gray powder, expands when heated, efficient in smoke suppression.

2. Excellent water resistance, not easy to precipitate, high flame retardant efficiency.
3. Halogen-free and none heavy metal ions. pH value is neutral, safe and stable during production and use, good compatibleness, not to react with other flame retardant and auxiliary.


Application: TF-PU501 is used solely in flameproof treatment for rigid polyurethane foam. UL94-V0 and GB / T 8624-2012 B1 can be achieved when addition volume of APP more than 15% .   B2 -9%.


Fire Retardancy and Mechanical Property Experiment for FR RPUF

(TF- PU501)


Fire Retardancy:

TF-PU501 ( 9%) Sample
1 2 3 4 5 6
Average self-extinguish time(s) 4 3 2 4 5 3
Flame height(cm) 15 17 13 12 13 15
SDR 83 74 73 88 81 93
OI 28 27 28 28 29 27
Flammability B2


Mechanical Property (test at addition volume 22%) :

Formulation TF-PU501 Polyether Rough MDI Foamer Foam stabilizer Catalyzer
Addition(g) 22 50 65 8 1 1
Compression strength(10%)(MPa) 0.15 - 0.25
Tensile strength(MPa) 8 - 10
Foam density (Kg/m3) 70 - 100


FR RPUF is widely used for insulation board , sound insulation board, insulation pipe sleeve , elevator wheel , roller , shopping wheel , etc.


TF-PU501 ISO Rigid PU Foam APP Flame Retardant 0TF-PU501 ISO Rigid PU Foam APP Flame Retardant 1