Spec Sheet Ulrike Weiss - 5 Pages

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Spec Sheet Ulrike Weiss
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Catalog excerpts

Glazed Lava Technical Specs Origins Properties Tradition Today

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Thousands of years ago, telluric forces generated fountains of Starting at noo°C, the magma slowly cooled and solidified. Today, although the volcanoes in the Auvergne region have lain ncandescent lava which spewed forth from the mouth of dormant for centuries, this raw material is extremely useful to us. Large blocks of lava, weighing up to 20 tonnes, are extracted Local companies use diamond saws to slice the blocks into From large, solid table-tops to small, delicate friezes, lava can be from open-air quarries using explosives. slabs (a water jet cuts 24 cm per hour). cut to almost any size...

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Properties Lava is a volcanic rock which varies considerably in appearance. I use slabs of lava from Volvic in the Auvergne region. Featuring pores of varying sizes, they start off grey in colour and become browner during firing. Highly-resistant and extremely hard, lava is situated between marble and granite. It conducts heat and is capable of withstanding frost, UV rays, pollution, acid and thinners, as well as abrasion from sea-salt and sand. The density of lava is 2.2 (= weight per m²: 22 kg for a thickness of 10 mm). I use faience glazes that are fired at 1000°C. Several firings are required...

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Michelin sign (lettering screen-printed in dark blue enamel) Lava as a construction material: Clermont-Ferrand Cathedral Drainage gutter Art Nouveau frescoes on the façade of La Samaritaine department store in Paris

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Kitchen worktop* Swimming pool tiles* Patio table* (*products made by various French companies)

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