Delta Ceramiche was founded in 1978 on the initiative of the Grego’s brothers, Dating from 1982, the only owner is Mr. Ezio Grego that personally designs and moulds every first item with the clay.The quality of the product is the result of extensive research and continuous experimentation and is guaranteed by the use of precious materials and exclusive production procedures. Every item is exclusively crafted and decorated by hand. Particular attention is paid to the crafting and finish of every object.
The company boasts a large international clientele.
It has a rich range of products that may be seen at the company showroom and at Macef Fair in Milan.
Mr. Ezio Grego personally designs and moulds every new item with the clay. This first shape is used to manufacture the plaster moulds which will be utilised for the production. A mixture of water and clay is pumped into the moulds. A few hours later the moulds are opened and the raw pieces are extracted, cleaned from the parts in excess and stocked at room temperature for a time ranging from some hours to a few days until they are completely dry. The fluctuations of temperature and climate conditions influence the term of the process too.
At this point the pieces are fired for the first time at about 1020 °C; then, when they are cold, they are taken out from the kiln and dipped into a colour basin. Now the pieces are ready for the second firing at about 950°C.
After the second firing we start the decoration of the pieces. For our gold lines we use a liquid gold at 10% , which is 24-carat pure gold (999‰ ).
After the decoration with gold, or platinum, bronze and pearl colour the pieces are ready for the third firing at 680 °C.
After these operation, the pieces are checked and after approval are assembled with the electrical fittings. Lampshades are selected in their shapes, kind of fabric, and sizes directly at our manufactures.
To the warehouse manager belongs the responsibility to verify the perfect quality of each piece and allow the packaging into carton boxes.
For our items with gold decorations, we use a liquid gold to 10% which is pure 24 carat (999‰ ). About liquid gold our suppliers never refer to a content of gold express in carats for the following reason: the carat represents the fineness of gold in 24 parts of an alloy based on this metal, in relation with the other contained metals, the copper in particular, required to harden the gold metal. Normally, the gold alloy used in the jewellery field is 18 carats (750‰). In the glass and ceramics decoration the gold film coat is not an alloy and never contains copper; it is much richer in gold compared to the alloy used in the jewellery field as only a very light proportion of specific metals is added to obtain a sufficient fusibility to let it fix to the decorated item. Furthermore, some of these elements are more precious of the same pure gold, like the rhodium always present in our gold film colour.
Our suppliers confirm that the gold film coat after firing contains gold at about 900‰.