| 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® FB4250T LLDPE for Blown Film.pdf |
| Price | EMAIL US sales@lookpolymers.com |
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 0.925 g/cc | 0.0334 lb/in³ | ISO 1183 |
| Thickness | 70.0 microns | 2.76 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 |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Film Elongation at Break, MD | 650 % | 650 % | ISO 527-3 |
| Film Elongation at Break, TD | 790 % | 790 % | ISO 527-3 |
| Secant Modulus, MD | 0.260 GPa | 37.7 ksi | ASTM D882-A |
| Secant Modulus, TD | 0.310 GPa | 45.0 ksi | ASTM D882-A |
| Coefficient of Friction | >= 0.50 | >= 0.50 | ISO 8295 |
| Tear Strength, Total | 4.50 N | 1.01 lb (f) | MD; ISO 6383/3 |
| 15.0 N | 3.37 lb (f) | TD; ISO 6383/2 | |
| Dart Drop | 3.85 g/micron | 97.8 g/mil | ISO 7765/1 |
| Film Tensile Strength at Break, MD | 38.0 MPa | 5510 psi | ISO 527-3 |
| Film Tensile Strength at Break, TD | 35.0 MPa | 5080 psi | ISO 527-3 |
| Optical Properties | Metric | English | Comments |
|---|---|---|---|
| Haze | 20 % | 20 % | ASTM D1003-00 |
| Gloss | 70 % | 70 % | ASTM D2457 |