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Borealis Borstar® FB4230 LLDPE for Film

Category Polymer , Film , Thermoplastic , Polyethylene (PE) , LLDPE , Linear Low Density Polyethylene (LLDPE), Film Grade
Manufacturer Borealis
Trade Name Borstar®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Borealis Borstar® FB4230 LLDPE for Film.pdf
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Material Notes:
Borstar FB4250T is a high molecular weight linear low density polyethylene grade combining good extrusion properties, excellent draw properties and good mechanical strength. Film made from Borstar FB4250T exhibits a good balance between dart impact combined with excellent yield and tensile strength and improved stiffness. Its toughness also remains in cold climate conditions. The film has good seal strength, wide sealing window and good hot tack force. In addition to the well know Borstar properties, Borstar FB4250T also give good optical properties.Information provided by the Manufacturer.
Physical Properties Metric English Comments
Density 0.923 g/cc
0.0333 lb/in³
ISO 1183
Water Vapor Transmission 8.00 g/m²/day
0.515 g/100 in²/day
At 38°C/90% RH; ISO 15106-2
Oxygen Transmission Rate 5000 cc/m²/day
322 cc/100 in²/day
At 25°C/0% RH/1 bar; ASTM D3985
Thickness 40.0 microns
1.57 mil
Melt Flow 0.40 g/10 min

@Load 2.16 kg,
Temperature 190 °C
0.40 g/10 min

@Load 4.76 lb,
Temperature 374 °F
ISO 1133
2.0 g/10 min

@Load 5.00 kg,
Temperature 190 °C
2.0 g/10 min

@Load 11.0 lb,
Temperature 374 °F
ISO 1133
High Load Melt Index 40 g/10 min

@Load 21.6 kg,
Temperature 190 °C
40 g/10 min

@Load 47.6 lb,
Temperature 374 °F
ISO 1133
Mechanical Properties Metric English Comments
Film Elongation at Break, MD 500 %
500 %
ISO 527-3
Film Elongation at Break, TD 750 %
750 %
ISO 527-3
Secant Modulus, MD 0.300 GPa
43.5 ksi
0.05-1.05%; ASTM D882-A
Secant Modulus, TD 0.350 GPa
50.8 ksi
0.05-1.05%; ASTM D882-A
Impact 60
60
Puncture Resistance, force (N); ASTM 5748
Puncture Energy 4.00 J
2.95 ft-lb
ASTM 5748
Elmendorf Tear Strength, MD 10.19 g/micron
258.8 g/mil
ISO 6383/2
Elmendorf Tear Strength, TD 22.93 g/micron
582.4 g/mil
ISO 6383/2
Dart Drop 5.00 g/micron
127 g/mil
ISO 7765/1
Film Tensile Strength at Break, MD 50.0 MPa
7250 psi
ISO 527-3
Film Tensile Strength at Break, TD 40.0 MPa
5800 psi
ISO 527-3
Thermal Properties Metric English Comments
Melting Point >= 124 °C
>= 255 °F
ISO 11357/03
Vicat Softening Point 104 °C
219 °F
A (10N); ISO 306
Optical Properties Metric English Comments
Haze 70 %
70 %
ASTM D1003
Gloss 10 %
10 %
ASTM D2457
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