Originally Posted by T-way
Keep in mind that any welding on the sign will cause localized heat and cause the surrounding porcelain to chip off the base metal.

And it may warp the sign itself.

Later . . .

Jim
Thank you, I plan on welding a corner back on. I'm gonna try to spot fill with my wire welder and butt weld clamps, while cooling it with a wet rag. Somewhere I read that porcelain is cured at around 400 F. The porcelain should stand the heat.....I hope.