KLackler

I've had the shelves outside but covered. It really only started happening maybe 6 firings ago, and I've used these at cone 6/7 for about 2.5 years. I just realized I had changed my kiln wash right about then, I wonder if that's what did it. The wash isn't on super thick. But it definitely looks like the shelf is degrading to me too. I will try grinding, then using a different kiln wash only on one side and see how they do.

I will start grinding and see how it goes. These are for an old Cress kiln I want to replace soon, so I'd rather not get new shelves yet. Thanks for all the ideas!

Darn! The flakes are pretty thick, and underneath is not smooth- it's pitted and crumbly. In order to make the shelf flat again I think I'd have to grind the whole surface on both sides, and maybe sand it smooth. Does that seem reasonable or maybe it's not salvageable? I will definitely check my kiln wash and get something better-I've just been using whatever my local ceramic stores sell, so I didn't think too much of it. Thank you so much for the help!

I had to figure out how to resize the images So this is a photo of one of them. I'm not sure what kind of shelf it is, but it's not very thick, which I love because it's not too heavy. They warp pretty badly, and I just keep flipping them which seems to help.

My kiln shelves are flaking apart and my question is, are they salvageable? And if so, how? They were bought second hand but lightly used, and I only fire them to cone 6, sometimes cone 7 as I have hot spots in my kiln. It just started happening after about 2 years of regular use (2-3x a month). It seems like there would be no way to get them flat again without grinding the whole shelf down, and it is happening on both sides. I'd really prefer not to buy new shelves...