• Help with Porcelain Bubbling Problems?

    Can anyone help? I am getting continuing bubbling in the porcelain right down to the metal. I have tried everything I know and nothing is working. Please help!

    Most recently December 25, 2012

    It's most likely from contamination somewhere in the process of conditioning and opaquing, as I'm sure you realize. Here's what I do to avoid the same thing:

    First, I use specific finishing/grinding tools for each metal and I don't cross contaminate. When using stones, I only use aluminum oxide.

    Second, I fiinsh my metal in one direction, never crossing over perpendicular to previous grindings , or reversing direction. This can fold metal over and cause bubbling later on.

    When I'm finished conditioning, I hold the coping or bridge with hemostats and never touch the coping with anything...See more

Show More