Supplied as a powder, Vandex Plug is mixed with water to form a thick paste. Once mixed, the paste is pressed into the leaking crack or hole using a trowel. After approximately 30 seconds, the Vandex Plug will have set and the leak will be sealed. The surface can then be levelled off using a levelling trowel. Vandex Plug can be used internally or externally as a waterproof plugging mortar or where rapid setting and early strength gain is required.