HPI Super 5SC Flux Purple Dust coming from the 2200kv motor


New member
I was doing some routine maintenance on my HPI Super 5SC Flux and noticed some purple dust on the front end bell cap.

I wiped most of it off before I noticed it and saw the dust on my brush and the remaining dust on the bell cap.

Anyone else have experience with this before? After doing some research, according to Castle, it looks like it might be the balancing material being grounded up and can lead to catastrophic motor failure.

Pic for reference, look at the base of the motor shaft.