Frit-Happens !

Lampwork => COE 104 => Topic started by: Betty the Chook on July 07, 2010, 09:07:45 AM

Title: Transparent red, orange, yellow
Post by: Betty the Chook on July 07, 2010, 09:07:45 AM
Can anyone recommend red, yellow and orange transparents or explain to me why the ones I am using go milky and translucent. I have Effetre glass and whenever I use these colours they go all yucky - I want transparent colour, not translucent...... None of the purple through to green do this ........aaaaaargh!

My only clue is that the offenders are "striking" colours.
Title: Re: Transparent red, orange, yellow
Post by: julieHB on July 07, 2010, 09:12:08 AM
Make sure you work them long enough to strike (sometimes they need several cold/hot cycles before the true colour shows).

Also, don't work these colours in a reducing flame, and I believe it is better to work them cooler rather than hot.

They are really lovely when you get them to work, so keep at it!!  :)
Title: Re: Transparent red, orange, yellow
Post by: Trudi on July 07, 2010, 09:56:36 AM
As Julie says - definately work cooler and in a neutral flame (possibly sightly more oxygen). You do need to let them cool a lot before gently striking them!

I have found that if I have just a little too much propane that it goes milky/murky!

For red - you can't beat CIM's sangre - it's gorgeous.

Laura Sparling has a you tube video http://www.youtube.com/watch?v=odYAlQZUQ-A

Hope this helps!

Title: Re: Transparent red, orange, yellow
Post by: jammie on July 07, 2010, 10:20:46 AM
Nice video Trudi, thanks!
Title: Re: Transparent red, orange, yellow
Post by: Trudi on July 07, 2010, 11:16:21 AM
I think that she's done a good job on that - and it's really helpful to see a video, makes it so clear!
Title: Re: Transparent red, orange, yellow
Post by: Betty the Chook on July 07, 2010, 12:57:28 PM
Aaaah! Sounds like it might be flame chemistry that is the problem for me. Colour development is not a problem, but I am on a hot head (slight reducing flame)- which is beginning to drive me bonkers. I will try turning gas down a bit more tomorrow and see if I can get better clarity.

Another excuse to upgrade my torch  ..... (note i say excuse, not reason :))
Title: Re: Transparent red, orange, yellow
Post by: Trudi on July 07, 2010, 12:59:19 PM
LOL - if you're on a hot head, try working a bit further out in the flame - there should be more oxygen further out!
Title: Re: Transparent red, orange, yellow
Post by: Betty the Chook on July 07, 2010, 01:07:28 PM
Will give it a go and report back. Thanks for the help!!