Product Description
Sumitomo IGETABOND BF-7L is an E-GMA-MA terpolymer impact modifier with MFR 7 and density 0.96, toughening PPS, PBT and PET compounds at low addition rates.
Key properties
| Melt flow rate (MFR) | 7 g/10min | 190 ℃ / 2.16 kg · JIS K7210 |
| Density | 0.96 g/cm³ | JIS K7112 |
| Melting point (DSC) | 60 ℃ | Sumitomo method |
| Base resin | E-GMA-MA terpolymer | Ethylene glycidyl methacrylate maleic anhydride |
| Comonomer content | GMA 3% · MA 27% | Dual functional groups |
| Tensile strength at break | 4 MPa | ASTM D638 |
| Elongation at break | 850% | ASTM D638 |
Typical values for this grade, confirmed against the manufacturer TDS and the batch COA before shipment.
Typical applications
- Impact modification of PPS, PBT and PET engineering compounds
- Low-temperature toughening of polyester and PPS alloys
- Reactive compatibiliser for filled and glass-fibre reinforced systems
- Hot-melt and adhesion applications requiring soft, flexible bonding
Processing
- Compounding and masterbatch let-down
- Typical addition 3–10% depending on target impact level
- Purge the extruder after running — the epoxy groups crosslink on prolonged dwell
Supply
- Original 25 kg bags, lot traceable
- MOQ 25 kg, mixed container loading available
- Ex Shanghai; COA per batch, TDS and SDS on request
Grade data compiled from manufacturer published figures.
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