No more carying of heavy concrete bags - 1 bag of Sika Post Fix replaces 2 bags of cimentitious product., No mixing tools or water required - simply roll the bag to break the seal and allow the resins to mixed in the bag., Sets in 3 minutes, allowing faster fixing of posts, Install your fence after 2 hours, For all types of post: wood, metal, aluminium, PVC., Clean, dust free and with much reduced packaging to dispose of