Hello. I have just returned to scale model building after a 10 year break, and want to make dioramas for some of my better efforts.

I'd be grateful if someone could help me out with some advice. Having picked a wooden base for a diorama what is the best material to create the groundscape?

I've watched videos by a talented modeller on youtube who uses ready mixed grout. He is able to put tank tracks, grass, small stones etc on the grout before it cures.

Does anyone else use this material? What other materials do members recommend? Is polyfilla equally effective?

I've moved this question to another part of the forum, but don't know how to cancel it here. Could anyone help?