Now a 60x60cm prototype:
![](http://www.brimarx.com/pub/wm/fureur_de_nagash/WM_FdN_mat_proto1.jpg)
![](http://www.brimarx.com/pub/wm/fureur_de_nagash/WM_FdN_mat_proto2.jpg)
The color is not solid enough. I've not used enough white pumice and the canvas is not well covered, causing it to soak the paint
![Sad :(](http://www.specialist-arms.com/forum/Smileys/default/sad.gif)
Lessons learned => use enough pumice to have a solid layer (about 300ml per 60x60cm square).
I've not used a full waved pattern because that was somehow ugly
![Wink ;)](http://www.specialist-arms.com/forum/Smileys/default/wink.gif)
The mat is very flexible, the pumice does not get off, and while not soft, the surface is not coarse.
Applying the same method with a more solid pumice layer on a 180x120cm canvas and sealing the paint with PVA should made a fine mat
![Smiley :)](http://www.specialist-arms.com/forum/Smileys/default/smiley.gif)