Cracking Vetrofond

[Yellow friend]

Just bought some odds, as an excuse to find out if another 'mystery' stick I'd bought from ebay was made by Vetrofond - yes it was - it was Honey Crunch - great - then thought I'd do some experimenting. Did a couple of encased jobbies which have both cracked even after annealing. 1 was about 24 hours after wards.  Maybe I've just been lucky so far but I've only had about 6 beads crack on me since I started about a year ago. I thought that if the COE was the same, you could intermingle to some extent.  One of the beads that cracked had a little DH but the other was pure Vetrofond. Anyone else have similar problems - will I only be able to make spacers with this lot?

Shelia

[Kaz]

Vetrofond Odds + DH = Disaster!
All I have to say on the matter!
Kazx

[Shirley]

In some cases Vetrofond odd plus iself = disaster. Some of those colours are ridiculously unstable

[Sarah]

I've used most of the vet odds and I've never had a cracking problem. I've used them with DH and I've encased them ('though not honey crunch).

Are you garaging or batch annealing?

Sarah
xxx

[Yellow friend]

Always straight from the flame to the kiln & leave overnight.  Have to say I do not feel very confident about selling these until they've sat around for a bit, just in case they decide to crack.

[Sarah]

I wish I could help - I always put mine straight in the kiln too and I haven't had a problem encasing or using DH. I usually use lauscha or CIM to encase so you could try that?

Sarah
xxx

[Yellow friend]

I'll try that but you would think that if you encase with the same brand it would be ok, thanks for your advice.

Shelia