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Technical Forum => Search Tips and Techniques => Topic started by: bucksbeadie on July 20, 2014, 12:30:54 PM



Title: Double helix discolouring base glass on hot head
Post by: bucksbeadie on July 20, 2014, 12:30:54 PM
I have been playing with double helix on my hot head. No problem reducing the glass, but I have tried doing dots on clear and white and the clear and white are discolouring even before I reduce. The effect isn't bad, the white goes to ivory and the clear takes on a hint of the colour of the double helix, but it's not what I am tring to achieve.

Is this inevitable on a hot head or am I doing something wrong? Any advice welcome


Title: Re: Double helix discolouring base glass on hot head
Post by: helbels on July 20, 2014, 12:35:36 PM
Silver glass will often fume white and pink to ivory tones, even before reducing, but on a Hothead, because the flame is always slightly reducing, there's a much higher risk of it.  If you want to avoid it, you will need to encase the white first, but even then sometimes the clear will take on a slightly amber tone.


Title: Re: Double helix discolouring base glass on hot head
Post by: bucksbeadie on July 20, 2014, 12:59:12 PM
Thanks it's really helpful to know why this happens. Will try the encasing method. not unhappy with the result, but if this is likely on a hot head might just need to adjust my design ideas to accommodate it


Title: Re: Double helix discolouring base glass on hot head
Post by: Arwynd on July 20, 2014, 01:09:38 PM
Use a non-reactive clear like Zephyr to encase if you want to avoid the yellow :)


Title: Re: Double helix discolouring base glass on hot head
Post by: bucksbeadie on July 20, 2014, 03:53:02 PM
I'm due a treat from tufnells so will add that to my list thanks