Removing crown with threadlock

[MarkF]

I was casing a new watch and thought that I had shortened the stem sufficiently, so I attached the crown with red threadlock. Upon further inspection it turns out it is still a touch too long - just enough that it bugs me when I look at it. 

What is the best way to remove a crown that has been “locked” onto a stem?  I have read that very high heat will do the trick but  I’m worried about damaging the crown. 

[RichardHarris123]

Heat is the recommendation, 250 C. 

[MarkF]

37 minutes ago, RichardHarris123 said:

Heat is the recommendation, 250 C. 

No risk of damaging the crown or altering its appearance?

And what is the best way at home (limited equipment) to heat it to that temperature?

[RichardHarris123]

I wouldn't think that temperature would damage anything but I'm not 100 per cent sure.  Put it in the oven. 

[spectre6000]

My knee jerk thought was a soldering iron. They typically get a lot hotter than 250 though. Mine has temperature control, but I don't know how low it'll go. Regardless, I don't think you're going to damage it even at the top of the temperature range.

[Malocchio]

I've been told to use the lowest part of a cigarette lighter flame. Works fine with me and no discoloration of parts.