Glass Tips from Verrier

  Photo Credit: Rachel Meadows-Ibrahim The main causes of the large thin bubble is most probably  too high a temperature combined with a lon...

A range of problems appear in slumping.  These include bubbles, splits, puddling and more. Several causes are possible.  This blog looks at ...

"I could use some help here please. I’ve tried this sun mould 3x and as you can see all 3x I get a hole.  If you could tell me what...

There are those who advocate removing the kiln shelf(s) before slumping.   The advantages claimed include: Better heat distribution ar...

  “Do you drill holes in the bottom of the stainless steel moulds the same as with the ceramic ones? I imagine so, as the air issue is t...

Drilling holes and raising the mould are not the same. They achieve different things. Drilling holes allows air out from between the mo...

There seems to be an increasing popularity for re-useable ceramic casting moulds.  One of the common problems with these moulds is bubble...

More vent holes reduce the possibility of big bubbles The position of the vent holes is more likely to prevent bubbles than simply th...