An exemplary embodiment of a method of making an electromagnetic interference absorber includes stretching a material that includes EMI absorbing particles along at least a first axis to align at least some EMI absorbing particles. In one embodiment the mounting apparatus includes an elongate support member having an attaching face comprising a removable protective layer and an adhesive layer that is exposed when the protective layer is removed. The alumina sol is mixed with a boron-containing molecular sieve.