I recently full fused a project, a platter 11-1/2 X 7-1/2". It came out great...but when I fused it on my kiln shelf directly (instead of using Thinfire) which was prepared with Bullseye kiln wash. Some of the wash stuck to the bottom of the project, mostly on the ends that I was not able to get off. In doing some research online, it was suggested to soak it in vinegar for a couple of hours. I was able to remove the kiln wash, but my project, which was done in black, soft white and deep red (opal) left the deep red section dull and with a rough finish. I thought that I'd try to do a fire polish with a coating of clear powder on top. However, after firing, it is shiny, but I can still see the particles in the coating - it is not smooth. I suspect that I may have put too much powder on (although in watching the video I thought it was fine), and perhaps did not go high enough in temperature or didn't hold long enough. My question is, can I now refire at a full fuse to have it come out smooth or a fire polish at a different schedule? Clearly, I am a "newbie" and this is a learning process for me My kiln is a Skutt GM-1014. Appreciate any input. The schedule I used to fire polish was:
I hate to lose this piece, and still have to slump it. Thank you!