Magnetic rubber, also known as plasto ferrite, is a flexible material consisting of a mixture of synthetic rubber and magnetic powder.

There are two main methods for producing magnetic rubber:

1. Calendering: Calendering is the most common method for producing magnetic rubber. In this process, the mixture of rubber and magnetic powder is passed between two hot rollers that crush and roll it into thin sheets. The rollers also exert a shearing force that orients the magnetic particles by aligning them in the same direction. This gives the anisotropic magnetic material its directional magnetic properties, i.e. a greater magnetic force in one direction than in others.
2. Extrusion: Extrusion is an alternative process used to produce magnetic rubber profiles and shapes. In this method, the mixture of rubber and magnetic powder is heated and forced through a die to determine its shape. Extrusion can be used to create complex profiles that cannot be obtained by calendaring.

Production steps regardless of method:

• Mixing: the synthetic rubber and magnetic powder are thoroughly mixed to obtain a homogeneous mixture.
• Processing: the mixture is processed to make it soft and workable.
• Forming: the mixture is formed into the desired shape by calendaring or extrusion.
• Magnetisation: the material is exposed to a strong magnetic field to align the magnetic particles and give the material its magnetic properties.
• Cutting and finishing: the material is cut to the desired dimensions and finished to obtain the final product.

The choice of production method and the specific properties of the magnetic rubber depend on the final application of the material.

• Flexibility: Magnetic rubber is a flexible material that can be easily shaped and adapted to different surfaces.
• Magnetism: magnetic rubber has magnetic properties that enable it to adhere to metal surfaces with very high slip resistance.
• Durability: magnetic rubber is a durable material that can last for many years if used correctly.