These Fluorocarbon 'Damping' greases may be what you are looking for ( though 100 Euros for a selection seems pricey
) . The link here is to Micro Tools who supply lots of bits and bats for camera repair.
http://www.micro-tools.de/mm5/e_lubricants.htm
They could be a starting point for a search for a single grease from a nother supplier .
Hope this helps