Glass Tips from Verrier

Description of the materials Cordierite refractory shelves are generally combined with mullite to achieve low expansion rates.  These ...

A question has been asked about using tiles in addition to standard kiln shelves to fire glass upon.  Yes, you can use the unglazed backs...

Many people report that they fire multiple times on kiln wash that has not been renewed.   Most add coats over existing kiln wash.   They on...

credit: Scarva   Material Rigidisers are colloidal solutions of silica or quartz with a carrier of some form.   It is also available as a ...

Photo credit: Kiln Frog Sometimes it is difficult to replace a kiln shelf back into the kiln  with work on it .   This is normally because t...

Mullite kiln shelves credit: IPS Ceramics The most popular and easily available ceramic shelves are made from Mullite, Cordierite, and Cor...

  "Was the shelf completely dry? I’ve had pieces practically crumble from a wet mold or shelf." There is a lot of speculation ab...

The Bullseye research on annealing thick slabs indicates that it is important to have a 50mm space between the shelf and the kiln walls. Thi...

  Let’s think about moisture and large bubbles from under the glass. It is not the water, but the gasses created by the decomposition of mat...

A question about kiln wash. Do you have to let each coat dry while applying before applying the next coat?   There seems to be a popular ...