Product Description Hanson Fast Set Post Fix is a simple to use fast-setting concrete mix for fixing fence posts etc in the ground. It requires no pre-mixing before use. Hanson Fast Set Postfix contains Portland Cement, High Alumina Cement and special additives together with sharp sand and gravel.Fence posts, gate posts, line posts and rotary lines.COMPRESSIVE STRENGTH: Typically above 2 N/mm2 @ 1 hour. Typically above 3 N/mm2 @ 4 hours. Typically above 20 N/mm2 @ 28 days.
