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 Delft Clay Casting Set
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Delft Clay Casting Set

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. 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. A Delft Clay mold is created in these steps:

    • 1. Fill and compact the Clay into one half of the aluminum ring frame
    • 2. Remove excess clay with a straight edge (e.g. a flexible steel ruler)
    • 3. Press your original pattern halfway into the clay.
    • 4. Brush Mica Powder or talcum powder over this surface of the mold
    • 5. Install the other half of the aluminum ring frame, fill with clay and compact
    • 6. Open the ring frame and remove the pattern
    • 7. Carve out a pouring channel and vents
    • 8. Pour in molten metal

The Delft Clay Casting Kit includes 4.4 lbs. of Delft Clay, a 60mm dia. Aluminum Ring Frame, and detailed instructions. A 100mm diameter Aluminum Ring Frame is available separately. View the Delft Clay video for complete step-by-step instructions on the Delft Clay Method. Made in Holland.

Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7

 Item No.DescriptionEach
173-015Complete Kit$79.60
173-021Optional 100mm ring frame$57.50
173-020Replacement 60mm ring frame$53.95
173-030Replacement Clay, 4.4 lbs. (2Kg)$44.90
 
 
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