Filters

[Buzzybead]

I seem to remember that Sal mentioned using polarised filters to check  beads for cracks. Have I remembered this correctly and if so could someone give me some more information ( like where to get hold of them) I'm always terrified of using beads that may have slight hairline cracks in them ( slit throats springs to mind)

[Marijane]

They show up the stresses in an unannealed bead.  If you want to look for cracks then a magnifying glass might be better.  The stresses look like a dark cross within the bead.  Facinating stuff.  You can use it with a transparent bead to confirm that your annealing cycle is doing it's stuff.

Mari

[Sarah]

Claire

Try this link - there's a lot of other stuff too but I think you'll find what you're looking for

[Buzzybead]

Sorry - I can't see a link yet Sounds interesting though Sarah.

[Sarah]

Oops



http://www.frit-happens.co.uk/forum/index.php?topic=2057.0

[Buzzybead]

Thanks Sarah!