what mold making / casting materials to use?

[Relic]

I know that there are numerous tutorials about this matter but I also know that there are a lot of wise members who can help me with this

So, I have made a few terrain pieces and would like to do molds out of them. The moulds would be used with resin / plaster. Molds need to be only single part!

Which products would you recommend? Just one material for moulds and what resin (plasters I know)

thank you in advance!

[Donpimpom]

have a look at this thread, I would say you will find some useful infos
http://leadadventureforum.com/index.php?topic=14231.0

[Relic]

thank you!