Well I finally got my first half of the mold done. I need a new gasket and couldnt find one. So for 5 hours I turned my compressor on every 15 minutes using the shut off valve as a regulator to keep the pressure maintained at about 50 lbs.
WOW...what a finish. The top of the mold looks like a mirror and not a single air bubble can be seen. Compared to my old molds where you can see the air bubbles right below the sureface.
Im glad I stopped casting 4 months ago and waited till now. I'm looking at all the molds I have made so far without a pressure pot...as good as they are...OUCH...Im throwing them all away. I am going to try and find some kind of gasket material, maybe a mason jar something along that line. I dont mind babtsetting a leaking pressure pot right now, but I can tell it will get old real quick.
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Anyways, in these next 2 pictures, what I am trying to show is that while the texture of the silicone is somewhat rough, there are no air bubbles. Of particular interest is look how smooth the alignment holes are. I plan to take my time making the molds. Even if it means babysitting the pressure pot because of a slow leak. The results are so worth it. I can hardly wait to try out the clear resin to see how it will work. A Clear Centaurus. I can finally get my Chess set done.
OMG! I never thought of using legos as a mold frame! That is brilliant!
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