u/SulliverVittles

Every now and then we will get a crown after sintering that seems like all the shade liquid pulled off of the body to pool at the occlusal. It's a couple crowns every now and then and other crowns with the same shade, dipped at the same timing will be fine.

We use argen zirc, chroma dip.

Does anyone have any idea what could be causing this?!it's driving us nuts trying to figure it out and we've done so much trouble shooting in terms of making sure the surface they are placed on after dip are clean/dry, changing shade liquid, etc.