Hi Mizuko,
I'm really sorry to hear you've had such a rough week. I know how setbacks with your tail can make you feel like a failure...I felt the same way when I ran into all my issues with my first tail. I was a stressed out wreck over my tail and I can only imagine how much worse it is for you after losing a close friend.
I wish I wasn't on the other side of the world so I could give you a hand with your tail :) I might be able to help you problem solve though....I have a few theories...
"Not sure why the scale mold failed. Its like the Shell Shock didn't sink into the scales properly- so no details were captured unless it was on the thicker scales. This confused the hell out of me- we poured it just like the other molds, and considering it captured every detail down to my fingerprints on the other molds, I cant explain what happened."
a few questions:
did you just pour the shell shock or did you brush the first layer? If you mixed the entire bucket at once, something like this can happen if the shell shock becomes too thick and hardens before seeping in the cracks. This would explain why it captured the thicker scales and not the thinner since the thinner ones would be lower....
did the shell shock cure properly? Is the mold brittle or does it bend? If the ratio is off even a bit you can have problems. I had an issue with one of my test molds when I eyeballed the measurements.
How old is the shell shock? Shell shock has a very limited shelf life....and considering the high price over there it might be possible you got some old material if they don't sell a whole lot of it.
What temperature were you working at? If it was hot then it also might explain the issue because the shell shock would thicken/cure faster.
i think we can get to the bottom of this! Shell shock is picky stuff, but your other molds turned out great so this is surprising that you had trouble...it might just be that you got a bad/old batch considering you know how to use the stuff successfully.
as for your silicone.....it shouldn't be thick and globby. What temp are you storing it at? Silicone is really runny stuff normally, but temp can impact the thickness a bit. Also.....you might want to try getting a really big mixing spoon (actually 2 so there's no cross contamination) and mixing the silicone buckets really well. Silicone should be runny enough to pour off a plate easily.....like Jazz's nacho cheese she mentioned above. :)
Ultracal sounds messy! What if you just got a quart size of shell shock and brushed a super thin layer and then used fiberglass? Your scale mold isn't that big so I would think a quart would get you a good thin layer without breaking the bank.
Your fluke is just so pretty....and all those extra fins! You're going to look like a beautiful pink mermaid angel :)