(To make green sand for metal casting I mix the bentonite with premium quality foundry sand at a ratio of 1:10 and add water)
I have been doing metal casting as a hobby for about 15years using 'Petrobond Sand'.
During that time I have tried to find a supplier who would sell small quantities of 'Green Sand' that is water based.
Didn't find one so have bought a pallet of sand and a pallet of Bentonite to mix my own.
"Sibelco's Trubond is a natural sodium Bentonite mined and processd near Miles in Queensland"
'Plumbago' Graphite Powder 0.5kg Bag – Parting Powder for Metal Casting
Plumbago is very resistant to high temperature and can be used as parting powder and prevents sand sticking to the surface of castings. Can also be brushed onto sand cores to make a smoother surface finish. Works well as a lubricant for molding box pins.
