Wow - it's from Slice Eng. - so, I think it's gotta be Respectable!
I think I talked about this in the past, as this super smart dude I worked with - He would indeed do a special kind of coating on the nozzles - cause things like Ultem would stick to nozzles a LOT and sometimes would cause a Serious mess. When I did that posting here - probably about 6 months ago - I believe I reached out to the dude on LinkedIn - to find out what it was he used - AND - I believe I gave that info here in the forum!
At least I think so...
-K