Each type of core material has unique properties allowing specialised uses, for example Rohacell HF’s is often used as a spacer or filler within aerial and RF circuit designs.
Using precision sanding and milling methods complex shapes can readily be cut to remarkable accuracy. We have invested in a quarter sheet sander capable of machining down to 0.8 mm thickness. While foam at this thickness is like card and not generally used in composites it is used for precision spacers in antenna arrays and other electronic products. We can supply matieral at any desired thickness between 0.8mm and 8.0mm to a tolerance of +/- 0.15 mm (+/- 0.1 mm on request) across a small sheet (typically 625×415 +/- 2 mm) and the results are very impressive.