Prefessional 
Halogen Free Flame Retardant Manufacturer

PBT Halogen Free Flame Retardant - EPFR-300B



PreniphorEPFR-300B, mainly contains N and P, is a kind of halogen free environmentally friendly flame retardant. It has been developed especially for the glass fiber reinforced PBT, specially those needed good performance in Glow Wire Test. It functions in condensed phase and gas phase. 


The flame retarded glass fiber reinforced PBT with EPFR-300B can pass the tests of UL 94 V-0 (1.5mm), GWIT 750℃(3.0mm) and GWFI 960℃(3.0mm). Moreover, it is of great thermal stability and keeps stable during processing. The products with EPFR-300B are characterized by less mold corrosion, great color stability, and excellent electrical properties ect. 


Index:

Test  Item

Unit

Target Value

Appearance

——

White Powder

Density

g/cm³

1.0

Bulk Density

g/L

350

Nitrogen Content

% (w/w)

21.5

Phosphorous Content

% (w/w)

23.5

Decomposition Temp.

≥280

Average Particle Size

μm

4

Water Content

% (w/w)

≤0.3


Recommended dosage:

Polymer

PBT(15% Glass Fiber)

PBT(20% Glass Fiber)

PBT(30% glass fiber)

EPFR-300B Dosage %

20

20

18

Flame Retardancy 

UL 94

V-0 (1.5mm)

V-0 (1.5mm)

V-0 (1.5mm)

GWIT

750(3.0mm)

750(3.0mm)

750(3.0mm)

GWFI

960(3.0mm)

960(3.0mm)

960(3.0mm)





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