Do I have to use kiln wash on your Kaiser Lee Board?
If you want to kiln wash Kaiser Lee Board kiln shelf, use either Boron Nitride or Primo Primer. But we do not recommend kiln washing for reasons explained below.
In Germany I learned to use only kiln wash in its dry stage rather than mixed with water – just powder it onto the shelf and add more as needed. You have to be careful when placing your glass on it so that you don’t get any on top of the glass, but other than that it works fine.
Can I use no release at all?
Yes you can, glass does not really stick to Kaiser Lee Board. It will pick up some of the particles and will be rough on the back – which could be good in the case of wall mountings like tiles or back splashes. Opalescent colors are more aggressive than transparent colors or clear. Clear luminescent glass works well with just kiln wash powder.
Iridescent or dichroic glass does not stick to the board either if you are using the coated sides toward the board.
Will the glass ever stick to Kaiser Lee Board?
The only time I have glass picking up a junk of fiber is when I melt glass to its liquid stage for raking. I’m using a different kiln and a designated Kaiser Lee Board for this process.
Another issue could be, if you treated the shelf with regular wet kiln wash (other than Primo Primer)). This type of kiln wash is known to stick to the glass sometimes and than it will rip fibers from the shelf. So please never treat your kiln shelf with regular kiln wash.
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