boiled pizza

[anthearintz]

i'm new to this glass malarkey  . and i'm shedding alot of tears (and blood!) as i learn. i am not having much success with frit use. i want to have a go at painting by light (with light?!) and sandwich frit between the glass but if it doens't bubble and explode, it looks like a boiled pizza, even more so when i add frit to the top. Which size frit shd i be using between layers to max on colour and minimize on bubbles? and what should i be firing at, large pieces to then slump as bowls. thank you 

[Warm Glass UK]

Frit & Powder Adventure June 4th 10am to 4pm £80.85 + vat - sorted!

http://www.warm-glass.co.uk/Shop/ProductDetails.aspx?ProductId=2650

Pippa 

[The Fire Devil]

Don't know if this will help as I've not tried it myself, but I've heard that it is a god idea to prop up the corners of the top clear sheet if you're trying to create a sandwich.  Use clear glass and pop a piece in each corner and this may help the air escape before the top sheet slumps totally.  Not sure if it will work, but wanted to share it just in case!  )

Saw some lovely glass pictures in frames when on holiday in cornwall recently, so might give this a go at some point (when I'm feeing brave), and if so, will let you know how I get on.  I'll certainly be trying this technique if I try and create some pictures in glass.

Good luck!

[Pat from Canvey]

That's what I always did when I was slumping glass.

[Muzzio]

To minimize on bubbles, try a longer bubble soak, and, as someone mentioned, putting something in the corners can help.. you want the glass to seal from the middle out so that the air can be squeezed outward. I like to clip flat chips of clear rod and put them in the corners. You could do the same with small pieces of clear glass. I like to use pieces with a similar size and thickness so that the piece can slump and seal symmetrically. If the pieces you use in the corners or around the edges are of different sizes then it's likely that one side could seal before the other - then if there are bubbles there will be more toward one side that the other, which looks even worse. This might be obvious but you'll also want to make sure the pieces in the corners are a little thicker than your frit layers, to hold the top layer of glass just above the frit.

http://www.warmglass.com/Bubbles.htm

[The Fire Devil]

Hi, me again!

Just to add, have been blogging about this as I actually have something baking in the kiln right now using this technique.  Will keep you posted if you're interested and will take some pics if maybe that would help.  Stupidly forgot to do any before pics but I can alwasy explain what I did afterwards if it works!  Hopefully

http://wp.me/pYHiC-v