I've read many accounts about using motor caps, and the consensus is run caps are OK, start caps are a no-no.
Some have expressed concern about ESR and such, but my test is "do they get hot?" Usually no, but I've had them go leaky before my use, even new ones.
The voltage ratings also go up some 25% for DC service, an added bonus. 480AC rated run just fine @ 600DC.
I've built several HV supplies with run caps (up to 100uF) over the years and not had one failure. I've also used a combo bleeder-divider if having to use some in series.
AND...anytime I can use a non-pol cap in place of some short-lived paste electrolytic from China it a good thing!
So, one vote yes.
73DG