Respond to these showcases www. ajplus. co. uk/ajdirect Readers may obtain information about these products by filling in the enquiry numbers on an AJ enquiry card. Advertisers wishing to promote their products on these pages should Vandex Plug offers a simple solution to water leaks and seepage. Supplied as a powder, it is mixed with water to a paste and pressed into the leaking crack or hole with a trowel. After 30 seconds it will have set and the surface can be levelled.