TDK is the only company that manufactures both the ferrite tile and the engineered foam absorber

TDK offers unique advantages over competing products
 

• TDK absorber is the original polystyrene based material and is impervious to water and humidity.
• Carbon and fire retardant properties will not wash out or leach out of the absorber if exposed to water or high humidity.
• Our polystyrene absorber does not deteriorate when exposed to the environment.
Competitive absorbers tend to react with environmental moisture and various chemicals over time, which causes degradation of the substrate, and eventual loss of carbon (i.e., carbon falls out of the absorber and performance declines).
• TDK absorbers have a proven performance record for 30+ years.
• TDK backs the absorber with an extended warranty for both mechanical stability and electrical performance. TDK backs this warranty with nearly forty (40) years of internally and independently verified empirical data.
• Polystyrene absorber is dimensionally stable. It will not expand and contract in many varying environments and it will not “droop”, “twist”, or “sag” over time.
• Carbon is dispersed more evenly in polystyrene absorber (by nature of the manufacturing process). This means better impedance matching with ferrite tile and more predictable and repeatable performance from very low frequencies to very high frequencies (40GHz+).
• TDK manufactures all of its own absorbers, meaning TDK has better control over quality and delivery schedules. To our knowledge, TDK's absorber manufacturing facility is the only ISO 9001 and ISO 14001 certified facility in the world for production of this type of material.
• TDK absorber meets NRL Class 1,2,3, UL94HBF, UL94-5VB, and DIN 4102 Class B flammability specifications as well as ASTM standards.
• TDK absorber is the only material that is listed by Underwriters Laboratory for EMC and Antenna evaluation test chambers.