Celanex® XFR 4840

About
Celanex XFR 4840 is an unreinforced, flame retardant PBT grade featuring a halogen and antimony free flame retardant system. It is UL certified to be V-0 at 0.8 mm in all colors. Our proprietary flame retardant system enables a combination of excellent mechanical properties, flame retardant efficiency and processability. The product is WEEE and RoHS compliant.&&

Product Description
SupplierCelanese
Genericpolybutylene terephthalate
Material StatusCommercial: Active
FeaturesExcellent Processability,Halogen free,Flame Characteristics,No antimony,V-0
AvailabilitysNorth America,Europe

Technical Data
PHYSICALNominal valueUnitTest method
Density1.34g/cm³ISO 1183

MECHANICALNominal valueUnitTest method
Tensile modulus3300MPaISO 527-2/1A/1
tensile strength
fracture45.0MPaISO 527-2/1A/50
Tensile strain
fracture14%ISO 527-2/1A/50

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength
23℃3.0kJ/m²ISO 179/1eA
Charpy Unnotch Impact strength
23℃32kJ/m²ISO 179/1eU

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa, unannealed70.0ISO 75-2/A
Melting temperature225ISO 11357-3

Electrical performanceNominal valueUnitTest method
Compared to the leakage tracing index600VIEC 60112

FLAME CHARACTERISTICSNominal valueUnitTest method
0.80 mmV-0 UL 94

Notes
1. Typical properties: these are not to be construed as specifications.
2. 30s
3. 10°C/min
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