Yesterday I made two test with Jesmonite, the second cast was better than the first one, but none was good enough. Jesmonite was too thick to allow it to fill the mould which gave lots of air holes.
Today I was down in my local hobby shop buying some resin and made a new test – which is much better. I can see now that by sealing my master before making moulds will probably be better, and if I at the same time improve my sculpting skills it will all be a hit. :-)
Next I will try to paint this little wall section, most because I can’t resist. Then I will make some new moulds with sealed surfaces and if no new problems have occurred I will resume my work with sculpting new wall pieces at the same time that I cast the ones already made.