The absorbency of RAM at a given frequency depends on its thickness and:

The absorbency of Radar Absorbing Material (RAM) at a given frequency is significantly influenced by its composition. This pertains to the specific materials and their chemical makeup that are used to create the RAM. Different compositions will alter how the material interacts with radar waves, impacting its effectiveness in absorbing or reflecting those waves.

For instance, various additives and base substances can change the dielectric properties, magnetic permeability, and overall structure of the RAM. These factors are critical because they determine how well the material can attenuate electromagnetic energy, which is directly tied to its ability to reduce detectability by radar systems.

While material density can play a role in a material's physical properties, it is the specific combination of ingredients that determines the mechanism through which the RAM absorbs radar signals. Age and color generally have less impact on absorbency, as they do not fundamentally alter the electronic or structural properties of the material used in RAM.