A couple of years ago I got a selection of Abranet sanding discs (80 - 600)
as well as a backup pad to fit my PC ROS. I haven't used them a whole lot
but now I am doing a LOT of sanding. All of a suddent, the discs won't
"stick" to the backup pad. By stick I mean the little loops won't get caught
on the little hooks on the pad. If I visually inspect the discs that I have
used most, they seem to have a lot of white fuzz on them. It brushes off a
little bit when I hit the disc against the flat of my hand but not enough
to now stick to the pad. I may have a self inflicted problem here: as the
ROS was slowing down when I turned it off, I put my hand on the surface of
the disc to slow the ROS down more quickly.
In any case, is the white fuzz I see broken off loops? When I look at a disc
that isn't sticking with a magnifying glass, I see the white "fuzz" appears
to be pulled out loops. I have an 80 disc that I have hardly used at all,
and under the magnifying glass it seems that the loops are lower down to the
surface of the disc where they can catch the hooks.
I'm guessing your answer is that I will have to buy new discs. My visual
inspection seems to show that. If that is the case, did I do this myself
when I put my palm on the disc to slow the ROS down or is this some kind of
normal wear? I can't find anything on the web about wear so I figured this
group would know the likely answer.