Ok, we are ready to pour a corbel! You can see above I have my latex mold back inside my mothermold and have secured the two halves of the mothermold with a piece of rope. To help with the release of our poured piece from the latex part we use a mixture of regular alcohol and castor oil in a spray bottle, misting it down before the pour as a release agent. Never use other oils as they will deteriorate your latex mold.
Ok, thinking about how this guy will hang on a wall, here I have two 3 1/2″ long pieces of pressure treated 2×4 blocks fastened together and mounted to a small wood strip that lays across the mothermold to keep it flush with the back when poured. I left a series of screws hanging out of the blocking as to help anchor the cement around it securely. I have placed the blocking in position to make sure all poured walls will be at least a full 1 ” thick, plus this will lighten the piece a bit.
Here above I have poured the mold leaving the blocking flush to the top which is actually the back. I also temporarily strapped each end of my little mounting stick down to the table to keep it from moving and also floating to the surface.
Now after a little drying time I remove the rope and with a small flat headed screwdriver begin gently opening each end of the mothermold. Little at a time back and forth until the locking registers come apart.
Depending upon which half comes off first I then roll the other half onto its side and slowly wiggle the piece out gently.
And now after a couple months of fun stuff we are finally ready to reveal our first casting masterpiece. Slowly go around the outer flange of your latex and pull it away and up off your piece a little at a time. Take your time… It will come off. Stretch it up over protrusions and work it completely off your piece.
And whoa-la…. There you have it! An exact copy of your original clay sculpture cast in cement with every tiny detail you left on your clay. I will do a post next on how to mount this little guy and how he can be used as is as a little wall shelf, how he can hold a little bigger shelf, or by mounting two of these creatures and having a long shelf. Hope you enjoyed the little tutorial. The Stray Artist out!!!