The Arc Rapid Cement is ideal for internal and external repairs to steps and window sills, pointing brick and stone, setting posts and sanitary ware, repairs to ponds and pools, and the bedding and patching of paths, patios, and blocks. For holes deeper than 25mm, use ARC Pot-Cem Rapid Set Sand & Cement. This cement is easy to use, just add water. It sets in 30 minutes and can fill holes up to 25mm in one application. It repairs concrete, stone, and brick, making it perfect for patching steps and kerbs, and repairing window sills and ponds. The product comes in a 5kg size.