OK, so I've got my 'Think Pink' tutorial, made a couple of beads...but whenever I've annealed rubino in the past, it's gone purple in the kiln! I know Sarah mentioned that this can happen if you anneal at high temperatures or for a long time, but I'm only using the basic SC2 batch annealing schedule, nothing out of the ordinary.
What can I do? I'd like to keep my lovely pink beads pink! :(
I anneal at 520, and soak after the last bead for about 30 mins if it's a larger one. I used to do it at 530 but read it was high for some glass - what temp are you going to?
I'm using this schedule;
PRO1 (or another free slot)
Ramp1 149C
Temp1 520C
Hold1 60mins
Ramp2 78C
Temp2 371C
Hold2 0000mins
Ramp3 0000
maybe it's the long soak then.. good for big beads, but try doing the rubino near the end of the session, and coming down from 520 earlier - hopefully there will be a seasoned pro along to tell you more!
Hi Amber
I have used the same schedule as you and mine are still pink. Are you striking and striking the rubino - I think it does go a little darker the more you strike it or could you be putting it on too thick? I don't know really but I'm sure someone with much more experience will be along to help you soon.
Shelley
That's not a long soak in my book - I've had rubino in at the start of a seven hour soak session and it's never gone purple. I've never heard of this. I dont' even think 520 is too high. Don't want to sound patronising but are you absolutely sure it's rubino? It should reduce really easily to a metallic silver. If yours doesn't do that I'm wondering if you actually have rubino. CIM do a cranberry which looks very similar - wonder if you have that?
Do you have a picture?
Like Sal I've never had the problem and my schedule is very similar 'though I garage at 510 while I work and the move up to 520 for an hour long soak.
CIM cranberry reduces to a rather nice bronze and hasn't gone purple for me either so I don't think it can be that.
Might be worth PM'ing Sarah H if she has come across it before - I'm sure she'll be happy to give you help :)
Sarah
xxx