Those alage dozer pads are in fact scratching your acrylic. The are similar to the Dobie pads in there abrasiveness.
Someone told me this and my reply was... no they don't, I have been using them and cant see a single scratch.
So I took a spare piece of polycast GP (a top level cast acrylic) and bore down on it with the doobie.. bummer.. scratched it.
If you can keep it free of scratches, acrylic is sooo clear! See that drill... you are looking THROUGH 1" acrylic. That front panel is nearly invisible.
Anywho.. different strokes, different folks, not a big deal.
Did you do this with the acrylic having water against it or dry?
I just tested on a spare piece of clear acrylic, dry - yes, microscratches. Wet - no scratches; and I pressed much harder in a much smaller area than the magnet would use for force under typical usage.
Edit: Also, on the dry section, I rubbed and noticed friction was causing the pad to warm up, that's when scratches occurred. I think that's why it seems to work better w/ water acting as both lubrication and a cooling mechanism.
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