The investment casting technique or 'The Lost Wax' process has been in use since the ancient civilisations such as the Egyptians and Greeks. It is a process that involves moulding a piece in wax where it can be joined or finished to a good standard, dipping it in a ceramic slurry and allowing it to harden.
The ceramic coated wax is then heated so the wax melts out leaving a ceramic ''shell' which can then be fired in a kiln. This can then be used as a mould in which metal can be pored and when cool the ceramic is broken away leaving a perfect casting.
This technique is used extensively in precision engineering for the aerospace and defence industries but Darent Wax's main interest is in jewellery casting. Our jewellery casting waxes are designed specifically to give the finest detail, combined with controlled set off, resilience and minimum residual ash content making them ideal for mass production of precious metal jewellery.