Filltite Fill & Finish Masonry Repair Filler is a fine cement based powdered filler that contains sand, resins and special additives to produce a grey paste when mixed with water. The filler has excellent adhesion to most substrates and the ability to be applied straight onto damp surfaces making it ideal for work on exterior surfaces. This masonry repair filler can be used to fill holes and cracks, pointing work, repairs to degraded concrete, cornices, rough-casting, building blocks and window reveals. Once dry to finish, it can be covered with any type of paint, plaster-based or ready mixed fillers.