I’m wondering if any of you have experienced this issue with 3m
I work at a non-profit school in NH
We were pleased to save up enough money to buy a kit from Rio Grande
for 3m Bristle Disks
We have not had them long, perhaps a couple of months and they have
had very little use (since receipt of the disks we’ve run one class
per week with few students that might use the disks). Students must
check with an instructor before using them, and they are marked
regarding how to load them on the polishing wheel. The blue disk has
broken. The center hub is separated from the bristle disks - you can
hold the center hub still and rotate the bristle disks, rendering it
useless on the polishing wheel.
Our metal coordinator contacted Rio and the first question they
asked was if the disk was loaded on the polishing wheel backwards.
Since our coordinator isn’t in the classroom all the time, she said
she wasn’t sure, but knows that care is taken and that they are
marked. I’m pretty sure they were never loaded backwards. Rio told
her that they can’t be replaced and she’d need to buy a new disk.
This seems unreasonable to me - it seems to be a defect with the
wheel and I’m hesitant to have students use the others in the kit.
We are considering gluing the blue wheel, but not sure that will
work. Have others had this issue? Does anyone have suggestions
regarding how to save this disk? We’d love to continue to use these
types of disks, the students like the lack of compounds required, but
our school can’t really afford to replace them if they break so
Littleton Studio School