Magnetic holding pads are designed for securing items to receptive surfaces. They are used extensively for securing roof signs to vehicles and signs to steel and other internal ferrous structures.
They work by exerting a combination of high magnetic strength and friction, giving an immense resistance to shear forces when mounted to a smooth ferrous surface such as steel.
The magnetic base that is in contact with the metal surface has a polyurethane coating that is relatively soft to prevent scratching. The back plates of the magnets are zinc coated to prevent corrosion and come with the design options of holes or threaded studs for fixing.