Tim S wrote:
S Viemeister coughed up some electrons that declared:

Hmm. The only non-paper-covered stuff I've seen, _looked_ like
polystyrene.

That was my thinking previously.

If you say that this product, when painted, doesn't scream
'fake', I should take a look at it for the next batch of decorating.

B&Q (well larger ones) have it and there's often single bits for sale -
that's how I made the comparison. Have a look

I'm due for a trip to the one in Inverness in a few weeks - I'll have a
look then.