Borealis Borstar® FB4250T LLDPE for Blown Film

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Borealis Borstar® FB4250T LLDPE for Blown Film (discontinued **)
Categories:	Polymer; Film; Thermoplastic; Polyethylene (PE); Linear Low Density (LLDPE); Linear Low Density Polyethylene (LLDPE), Film Grade
Material Notes:	Borstar FB4250 is well suited for a wide range of film applications due to its properties. The well balanced mechanical properties will improve the functionality of the films or allow for material saving through down gauging compared to LDPE. Borstar FB4250T is especially well suited for film lines that are limited due to melt pressure. Typical applications are protection films, carrier bags, industrial liners and pouches, pouches, liners, etc. Borstar FB4250T is well suited for coextrusion due to its easy flow properties. Information provided by the Manufacturer.
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Physical Properties	Original Value	Comments

Density	0.925 g/cc	ISO 1183
Thickness	70.0 microns
Melt Flow	0.40 g/10 min @Load 2.16 kg, Temperature 190 °C	ISO 1133
	2.0 g/10 min @Load 5.00 kg, Temperature 190 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Film Elongation at Break, MD	650 %	ISO 527-3
Film Elongation at Break, TD	790 %	ISO 527-3
Secant Modulus, MD	0.260 GPa	ASTM D882-A
Secant Modulus, TD	0.310 GPa	ASTM D882-A
Coefficient of Friction	>= 0.50	ISO 8295
Tear Strength, Total	4.50 N	MD; ISO 6383/3
	15.0 N	TD; ISO 6383/2
Dart Drop	3.85 g/micron	ISO 7765/1
Film Tensile Strength at Break, MD	38.0 MPa	ISO 527-3
Film Tensile Strength at Break, TD	35.0 MPa	ISO 527-3

Optical Properties	Original Value	Comments
Haze	20 %	ASTM D1003-00
Gloss	70 %	ASTM D2457

**
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PBOREA114 / 27421

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