No, I have yet to seal it, because, the mold I tried making earlier this evening, didnt work out. When i tried removing my model from the impression, too much of the POP stuck to the model and deformed the cavity. Any suggestions on what I could use to make the clay model less likely to bond to the POP? Thank god I was able to salvage the model, as I am embarrassed to say, I have several hours of dremeling and sanding to get the contours I want. The tail-end of the model is very thin and rather delicate, and I am afraid of snapping it off when pulling it from the hardened POP. Really dont want to start from scratch. I will note, I have sanded it smooth as can be, with a fine-grit sandpaper.
My process for the mold was like this;
-put 2 drops super glue on the ends of model, and placed it in a container(storm chug bug box),
-mixed my POP/water, and poured into container, with the model adhered flat edge to bottom of container,
-approximately 35 minutes later, went to pop the mold out of container, and had the following problems; a bit of POP had settled between top of model, and bottom of container, and the model had a fair amount of POP that stuck to it. When I finally separated model from mold, it took too much POP with it from the cavity impression.
I since have cleaned the POP from the model, and sanded the flat edge(top of bait) to be more uniform to lessen the possibility of POP finding the uneven edge, and settling underneath it. My model has a little curl that occurred during baking, so I need to use some kind of adhesive to get it to lay flat in bottom of container. Was thinking maybe silicone(because i think it may be easy to remove from model after impression is made). Was also wondering if 2 part epoxy would be a good choice to apply to model in hopes of making it release from hardened POP cleaner, and also to seal mold with?
Thanks for the input!