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Author Topic: Mdina 12" Bark vase, Interesting label  (Read 2102 times)

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Offline chopin-liszt

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Re: Mdina 12" Bark vase, Interesting label
« Reply #20 on: November 07, 2009, 03:48:31 PM »
Real bark has been used, Ron - (boy, was I confused there for a moment, but you're in the US, you're not Ron Wheeler!).
It was used by Timo Sarpanevea in his original bark textured bottles.

The glass cools in contact with the bark, thus becoming more solid (obviously) and I would imagine the bark would be well dampened to give it some initial fire-proofing.
Cheers, Sue (M)

"Cherish those that seek the truth;
 Beware of them who find it."
Grimm.

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Offline MarkHill

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Re: Mdina 12" Bark vase, Interesting label
« Reply #21 on: November 07, 2009, 04:40:17 PM »
Sue's spot on, real bark has been used in moulds by Michael Harris, Timo Sarpaneva, Geoffrey Baxter, Tim Harris (last year at the exceptional Studio Day), and many others! It is indeed dampened quite considerably, and certain bark is better than others. As the hot glass hits it, you get a belch of steam, and the surface is changed (burnt) each time, meaning each subsequent piece takes on a different (and lesser) texture. For 'production' pieces, such as Whitefriars' pieces, textured steel moulds were made to ensure consistency. Experiments were carried out with wood/bark/even nail lined moulds. It's also not just the texture of the mould that affects the texture of the final piece - the glass has to be at the right temperature and blown well into the mould to pick up the best level of texture. Furthermore, even metal moulds wear down after time....
Many points to consider!
Mark
Text and images Mark Hill
www.markhillpublishing.com

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