Postfix fast-setting concrete mix

Postmix (often referred to as postcrete or post mix) is a fast-setting, ready-to-use blend of sand, cement, and additives supplied in 20kg bags for fixing concrete posts without prior mixing. It typically sets in under 10 minutes.

The quantity of postcrete needed varies based on the size and number of posts you’re installing. Typically, a 20kg bag of postcrete can secure a standard fence post in a hole roughly 600mm deep and 300mm wide. For larger posts or deeper holes, additional bags may be required.