Important: Safety Warning
This page describes trade processes that use dangerously toxic materials such as cyanide solutions, mercury amalgams, or strong acids. These processes require training, equipment, and precautions far beyond what the text describes.
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Home › Cements And Uniting Bodies › Hard Hydraulic Cement
Hard Hydraulic Cement
A cement which is said to have been used with great success in covering terraces, lining basins, cementing stones, etc., resisting the filtration of water, and so hard that it scratches iron, is formed of 63 parts well-burned brick, and 7 parts litharge, pulverized and moistened with linseed oil. Moisten the surfaces to which it is to be applied.