I have an old wooden block worktop that appears to have been oiled regularly as recommended but is now stained shabby looking with some black mould type staining round the sink. The client want to refurbish the work top and has said sand it down and re oil it. The problem I have is that within seconds my sanding pads get totally clogged up with sticky dust and become next to useless. I recon it will take hundreds of pads to get the job done. I have tried cleaning with copious quantities of white spirit but it appears to have no effect. Any help will be much appreciated.