is there any kind of material that magnetic fields won‘t be able to go through? basically what I‘m asking is, is there anything that if you held magnets up on both sides of that they wouldn‘t attract or repel each other?
Magnetic fields can be cancelled by introducing another opposite pole .
There's no way to cancel magnetic fields. Magnetic field lines must travel from the North pole to the South pole of a source. Nothing can stop that. However, there are materials that can re-direct magnetic fields around an object to form a sort of shielding. That's due to a property known as permeability. Magnetic fields are drawn to objects that have higher permeability. Normally, magnetic fields travel through the air, but the shielding attracts the magnetic field to itself, making an area of lower magnetism within it. Magnetic shielding is usually made of sheet metal, metal mesh, metal foam, and plasma (ionized gas). Another method is coat the interior of the shielding with metallic ink such as copper or nickel.
Their are materials that are not attracted to magnets, but there are none that will cancel magnetism outright.
