Ready-to-use with no mixing needed - simply pour from the bag. Sets posts within 5 - 10 minutes. Fence panels can be hung after 20 -30 minutes saving time and effort. Weatherproof plastic packaging allows cement to be stored outside in all weather saving waste and indoor storage space. Postcrete meets BES 6001 certification for responsible sourcing. Shelf-life of up to six months allowing re-use in multiple jobs.