9 Piece Delft Style Sand Casting Bundle for Casting Gold Silver Bronze Aluminium
 
The bundle contains all the items required for small scale metal casting (jewellery or model making) using the Delft technique, just need to add metal and heat.
 
The bundle contains:
 
60mm Aluminium Delft style interlocking casting ring, with side entry hole to allow horizontal and vertical casting
1 Kg of Petrobond Sand clay
Crucible Holder
53mm (2 inch) Ceramic Crucible/ Melting Dish
Carbon Stirling Rod 150mm
Brass Sprue Forming Mandrel
150g Parting Powder (Fine Calcium Carbonate Powder)
Dust Bag for the application of the Parting Powder (150mm x 100mm)
100g Borax Powder (Borax Decahydrate) Flux
 
The two part 60mm Aluminium Delft style interlocking casting ring is made from aluminium. It has a large side entry hole to allow vertical or horizontal casting. It allows the easy duplication of wax, metal, plastic or wooden patterns. The interlocking section are precision made to ensure an accurate fit and there is a small hole within interlocking section to allow accurate alignment of the under and lower sections. The internal casting void has a diameter of 63mm and the height is 66mm and 4.5mm thick.
 
Petrobond Sand is a high quality oil mix bonded sand suitable for non ferrous metals, including gold, silver, aluminium,  bronze silicon bronze, manganese bronze, and brass and copper based alloys. The sand produces a fine surface finish and produces comparable results to delft clay, using the same techniques and tools. It can also be used as an alternative to green sand for larger castings and produces near die cast quality casting. The sand can be reused multiple times. 
 
The Crucible Holder is 300mm long and can be adjusted for various sizes of Ceramic Crucible/ Melting Dish.  Allowing the Ceramic Crucible/ Melting Dish to be securely held when melting and pouring the metal into the mould, the handle reduces heat transfer. The 53mm (2 inch) Ceramic Crucibles/ Melting Dishes can be used with all types of precious and non-precious metal, including Gold, Silver, Platinum, Copper, Brass, Aluminium, Pewter, Bronze and Tin.
 
The brass mandrel is used to form the passage within the sand mould that the molten metal will pass through. The Mandrel is length is 50 mm Max diameter 14 mm and 2.95 mm shank.
 
The Calcium Carbonate Powder Parting Powder prevents prevents the casting sand sticking to the pattern (object being cast) and allows the pattern to be more easily removed from the sand as the mould is made. Also used to ensure that 2 halves of the mould are easily parted.  It can be applied using either a fine brush or sprinkled using a finely woven dusting bag (as supplied with the kit).   
 
The dust bag is made from finely woven material and has built in draw string to keep the parting powder in, measuring 150mm x 100mm.The dusting bag should be part filled and the draw string tied. It is then shaken over and  around the pattern and over any surface that easy separation is required from. A fine layer of dust will be deposited over all surfaces. Be careful not to use too much in corners and on fine patterns as detail can be lost.
 
Borax Powder (Borax Decahydrate) flux is used when melting and casting metals, by torch or in a furnace. During the melting process the addition of Borax to the molten metal will help improve the flow of the molten metal flow and prevent oxidisation. The Borax Powder can be also be used to glaze the Ceramic Crucibles/ Melting Dishes to extend their working life. This can be done by heating the crucible and sprinkling Borax on to the inner surface and reheating the crucible until the surface is glazed. Repeat until the whole of the surface is glazed.
 
The carbon (graphite) stirring rod for use when melting metals (gold, silver bronze copper & aluminium) for casting. The rods will help to remove impurities from the molten metal during the stirring process. The rods are made from high density graphite and are 150mm long x 12mm diameter. The rods are brittle and care should be taken when using them. The rod should not be used with platinum as this will contaminate the molten platinum. 
 
PLEASE NOTE: THE CERAMIC CRUCIBLE SHOULD BE PRE-HEATED AND GLAZED WITH BORAX
 
ALWAYS USE APPROPRIATE SAFETY PROTECTION WHEN HANDLING MOLTEN METAL!
 
Please see our other items, including Borax and additional Petrobond sand in various quantities.