Polishing problem

[Totorean]

Hi,

I am beginner with glass and encountered a problem. Please help me with some advice if you can…

I did a round pendant (diameter 30mm) of dichroic glass. Initially I brushed round shaped clear glass layer that goes on top. I superimposed dichroic glass and I burned it in the oven.

Finally after the burning, all around on the pendant there is a thin opaque streak from the polished edge of the clear glass.

My question to you is:  what should I do not have this stripes from polishing the shape.

I tried a subsequent polishing with cerium oxide and felt, but I could not remove the streaks.

 

Mention that if the clear glass is in square format – no subsequent polishing, pendants turn out very well. But I want to make pendants of various shapes, and that means to sand the edges but then I have that streak after burning.

Many thanks…

 

 

[wordana]

It sounds as if you are experiencing devitrification from the ground edges.  This can usually be resolved by scrubbing the edges thoroughly before firing.

 

Dana W

 

Jester’s Baubles Fused Glass Designs

http://www.jestersbaubles.com

[Anonymous]

Did you use any shelf paper under your pendant?  If so, you could be seeing the haze that is common when firing ground edges over any fiber product.

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Paul
FusedGlass.Org
Helios Kiln Glass Studio
PaulTarlow.com

 

[katkramer]

https://fusedglass.org/node/822

Complete discussion on how to fix it!

Let us know if that works!
: )
Kat Kramer

[Totorean]

 

Thanks you all for answers.

I will do test, after your advice.

 

I’ll tell you if I solve the problem.

 

Many thanks.    

[Author]

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