Felt cleaning thingies

[Voicecoil]

Whilst looking at ways of keeping swarf and crud out of the Hiwin carriages on my Z-axis the thought struck me that some blocks of felt with the appropriate shaped cutout might do a good job, and would help provide lubrication if doused in oil. Has anyone tried anything like this I wonder??? I was thinking of getting something laser cut out of 6mm felt, but would the laser fuse the ends of the fibres and detract from the wiping action I wonder???