On 29 Dec, 22:57, "Dave Liquorice" wrote:

Does MDF turn?

Yes, and tolerably well. You even get nice shavings from it. Surface
is a bit poor though - needs something to fill it, such as car
bodywork sprayable primer (under paint).

Valchromat (self-coloured MDF with extra resin content) works even
better. This will sand and take a waxed finish.

As a way of making huge bowls and closed forms from glued-up stacked
rings, it's well worth experimenting.