Regenerating oil for oil sand/oil moulding sand This offer includes 100g-1kg of regeneration oil for oil moulding sands. So that burnt moulding sand can be used again, it must be mixed with regeneration oil and paste. 1kg of moulding sand requires approx. 2g of oil and 2g of paste (available from the ZGG Ebay shop). The black oil sand produced after thorough mixing is well suited as a filling compound. For an optimal mould with a high level of detail, however, new sand should always be applied finely to the positive. The regenerated sand should not come into contact with the moulding and can be used to fill the rest of the mould.
