LKAB Minerals develops and supplies magnetite, a natural iron oxide (Fe₃O₄) known for its unique properties. MagniF is the brand name for magnetite grades used as functional fillers in polymers and rubbers. With a density of 5.2 g/cm³, MagniF acts as a high‑performance filler for polymers across a wide range of applications.
High-density MagniF as a functional filler
MagniF is a high‑purity, high‑density functional filler derived from natural magnetite. It is designed as a versatile solution for polymers and coatings across a wide range of applications.
MagniF enhances polymer performance through improved weight distribution, a premium surface finish, and a distinctive metallic look and feel. It also supports efficient processing and consistent quality in demanding applications.
It is also particularly well suited for sound and vibration damping applications.
High filler loadings can be achieved in a wide variety of polymers without the need for surface treatment of the filler particles. In polypropylene (PP), densities above 3 g/cm³ can be achieved with ease through extrusion and/or injection moulding. When using inline compounding, densities of up to 3.5 g/cm³ are attainable.
Key benefits:
- Delivers high density to polymer compounds
- Enables precise control of weight distribution within polymer parts
- Adds a metallic look and feel to polymers
- Supports excellent surface finish in finished parts
- Enables high filler loading without the need for surface treatment
- Provides consistent, reliable product quality
Contact us today for more information, a sample or technical details.
