Wet sanding question - re extraction
I've not done any wet sanding before, and it would seem logical that dust extraction is disconnected to save the oil being sucked up through the sander and subsequent hose.
However, there is still the sander's fan at work.
The discs that I have are some samples of discs that have been designed specifically for wet sanding. The odd thing is that they are still perforated. Maybe this is so that they can still be used as normal abrasives, or maybe it was an oversight in their development, who knows, but it seems a little odd.
For this particular job the smaller diameter 90mm sander would be the most appropriate, and it has an interchangable polishing head which is not perforated, so to me it makes sense to use this head, and that solves the problem for this job.
But what about larger jobs using a 150mm sander that doesn't have a head without DE holes? Surely even a small amount of oil lining the internals of the sander is going to lead to a gunk problem? Should I use abrasives that are not perforated in this case?
Thanks
Brett
Re: Wet sanding question - re extraction
Ran the sander for around an hour and a half, no discernible heating above the usual. Given that the interface pad is pretty thick, there's plenty of room for return air to get back. Also, I don't think my sander pulls it's cooling air from the sanding disc, so that'd probably help.