Hellboy bust and matrix mold making tutorial

[Ivar_L]

Hi,
I'm new here. Can't say I'm new to sculpting - as a child, plastiline was maybe my favourite "toy". But as an adult sculpting is a pretty new hobby for me. I made a couple of smaller figures when I discovered polymer clay, this one here is my first serious sculpt.
I wanted to try the whole cycle from prototype sculpting via mold making to the coloured resin cast. I also wanted to have something nice on my shelf, so I started my Hellboy bust...

It's not finished yet - at the moment I have only some resin plaster castings and I'm trying to find some resin. I's not easy here in Estonia... (Tried resin my friend is using for making canoes and it's not working).

I took many photographs when I was sculpting and making my plaster/silicone matrix mold. Several people thought it is good idea to post them here, so I will do so. It was the first time I was trying to do this, so of course I made some mistakes. But in overall I think I made pretty good job with it and I hope those pictures can help some other people to demystify this whole mold making process.

I will not post too many pictures about actual work-in-progress bust. I posted them on Hellboy forum when I was sculpting and most of them are not so important or interesting anymore. One more thing - polymer clay I'm using is German made Cernit, it's the one I can get here in Estonia. There are a couple of more clays in shops here - Russian made one I use sometimes as the first layer of clay on wireframe (don't like it enough to sculpt) and Fimo, which I've never tried. There are many colours of Cernit, I used white for this sculpt. It's not the best colour to photograph but I tried my best.

Here are some pictures of my Hellboy:
Original Cernit bust with Mezco figures:

Rotating gif:

First resin plaster cast:


PS: sorry for my English, haven't learned it in school!...