Frit-Happens !

Lampwork => Common Problems => Topic started by: Trudi on November 04, 2012, 08:28:52 PM

Title: Mica Flakes Bubbling
Post by: Trudi on November 04, 2012, 08:28:52 PM
Hi

I bought some mica flakes, but when I use them I'm finidng that they bubble a lot ..... not sure why. I'm making a small bead, rolling in mica and encasing (not letting the flakes touch the flame) .... any ideas??

Thanks

Trudi x
Title: Re: Mica Flakes Bubbling
Post by: Redhotsal on November 04, 2012, 10:49:12 PM
Sounds as if the size of the flakes are trapping air bubbles underneath? Wonder if heating the bead more before you roll it in the flakes could help?
Title: Re: Mica Flakes Bubbling
Post by: Beansprout on November 07, 2012, 04:09:35 PM
I have mica powder, and if I don't heat the powder into the glass before adding a dot for example the dot gets a straggly edge, and the dot picks up some of the powder.

I think it'll be the same with flakes too. Plus, the flakes will hole air under them, so that's where the bubbles come from.

Also if I put mica powder on too thick and heat for too long, it bubbles, it's quite nice actually :D