Eccosorb OCF

Frequency Key features Dielectric Service T° In or outdoor
above 1.5 GHz tapered broadband absorber 7.5cm, 10cm and 15cm 90° C In
Broadband, convoluted, open-cell foam absorber

Eccosorb OCF is a series of premium-grade tapered broadband absorbers.
It has a convoluted shape similar to the Eccosorb CV material, but is made from a much more open-cell foam material. 
This open structure allows the piece to be used at high humidity although long term exposure to water and UV should be avoided.