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Cement/concrete mixer! 1, Remove any paint from inside the mixer. 2, Chop up a sheet of glass or use waste. 3, Throw glass in the mixer with a few heavy metal objects. 4, Cover the opening of the mixer to reduce dust. 5, Fit some extraction to the centre of the cover (optional but recommended) this ...

The mold has been constructed using 1" fibre-board with curved top walls pinned together and placed onto a fibre-paper covered kiln shelf. Damp sand was pressed into the empty mold. The shape I wanted was a two way curve (like a segment of a sphere) this was achieved by dragging a glass templat...

When I say re-usable I mean use re-usable several times without disturbing/removing from the kiln. Yes I agree this is not a "hard" mold but more of a crisp surface mold, however when using just sand (damp at first to form desired shape) from a thickness of 1"min to a max of 4" c...

What is the best way to create a good re-usable mold for sand casting (crack free and smooth after drying) Or the most suitable way to repair any cracks / blemishes. I know there are several suggestions about additives to the sand but which one works the best?

Thankyou for your time.... XL