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The Delft Clay Method is a highly refined form of sand casting that substitutes genuine Delft Clay from Holland for ordinary casting sand. The process was invented by Hans Karreman, a Dutch goldsmith. Delft Clay is much finer than casting sand, providing remarkably sharp and highly detailed castings in gold, silver, copper-based alloys, pewter, etc.
The Delft Clay Casting Kit includes 4.4 lbs. of Delft Clay, a 60 mm dia. Aluminum Ring Frame, and detailed instructions. A 100 mm diameter Aluminum Ring Frame is available separately. View the Delft Clay video for complete step-by-step instructions on the Delft Clay Method. Delft Clay is imported from the Netherlands; aluminum ring frames are made in USA.
Castings require very little finishing work. Once you have cast your piece, the Delft Clay can be re-used. Since this is a cold-molding process, molds can be made from patterns composed of wood, wax, epoxy, plastics, and, of course, metal. Because this is a type of sand casting, it is best suited to producing castings without pronounced undercuts.