Glass Discussion & Research. NO IDENTIFICATION REQUESTS here please. > Belgium and the Netherlands Glass

Johnson-Matthey Crinkle type texturing of Cristaloc, de Rupel, Boom

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Jay:
As part of our research into Belgian factory glass we are investigating a range called Crystaloc, and manufactured by de Rupel glassworks in Boom, Belgium.
http://glassgallery.yobunny.org.uk/displayimage.php?pos=-5901
http://glassgallery.yobunny.org.uk/displayimage.php?pos=-5900


This is a form of glass that has 'flecks' of coloured glass applied to the surface to create an effect like a spray gun.

We have also found a few examples of a similar technique in the UK, but (knowing the way the glass industry works) I guess that there is a (much?) longer list of products using this (or similar) technique.

In Holland the technique is called 'suikerglas' or sugar-glass because of the granular surface. I've no idea what it was called elsewhere, so maybe that's why I can't find anything in the reference books, etc.

Can anyone else recognise this (typically 50's) technique? How widely was it produced? etc. etc. all tips appreciated!!

Anne:
Jay, this looks very much like Johnson Matthey Crinkles. See David's advert copy here:
http://glassgallery.yobunny.org.uk/displayimage.php?pos=-2593 and the topic here where these were discussed:
http://www.glassmessages.com/index.php/topic,2233.0.html

Ivo:
Another misunderstanding in the making.... "Suikerglas" is the Dutch term for what is known in English as "Overshot glass" - and this is a different technique from the 1950s sprayed on Johnson & Matthey processes.

In "overshot"the glass is rolled in ground frit before being blown out and the articles made in this technique are almost identical in shape and finish to the Incised ware you know as "frisian" - and from the same period.

Lustrousstone:
Can we see a close up of the texture please Jay

Jay:
The best I can manage on the instant for Christine.
http://glassgallery.yobunny.org.uk/displayimage.php?pos=-5902

Ivo, I understand the technique but would much appreciate a foto reference so that I can picture the result.
Are we talking about 'crackle glass' which is often (mistakenly) called 'ijsglas' (iceglass)  in the markets?
Is there an example of 'overshot technique' lurking in the galleries?
http://www.glass.co.nz/overshot.htm (?)
Well that clearly is some other kind of beastie! Let's not be distracted by the diverse crystallations of sugars.
I've looked through a dozen googlinks for 'overshot glass' and I'm not seeing anything which really resembles this granular texture.

The Boom product is very smooth to the touch and, of the available techniques I would think that a flux which was burned off in the oven seems the most likely. (The english? examples we have, including hyacinth vases, are rather rougher (almost sandpapery) to the finger)
This surface is really very similar to Rozendaal's Oranjevaas, where the intention was to resemble orangepeel, and that's a good indication of the feel of crystaloc

I'm sure you must have seen as many of these textured items as I have, so what do YOU call them (in Dutch)?

PS. I',m waiting to have the brand's spelling confirmed by an expert, it may be called 'Cristalor' rather than 'Cristaloc'!

PPS I also read through the threads and remaining pics, but can't find anything that really looks/sounds similar enough.

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