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Fast-setting Post-Mix is great for quickly and securely securing fence and gate posts. It comes in easy-to-handle 20 kg weatherproof bags. 

Ready-mixed, add water. This is an ideal fix for many garden fencing tasks. 

It is essential that the instructions on the bag are followed. Not following the instructions may extend the setting time and/or affect the quality of the hardened post-mix. Please be advised that the setting times at lower temperatures will be longer. In very cold weather, it may be worth using 20mm ballast and cement to make up dry-mix concrete instead (See 20mm Ballast), as it is not so susceptible to temperature. 

The supplier has provided a step-by-step guide here.

We recommend that post-mix bags be stored under cover whenever possible.

Please follow the mixing and safety instructions on the bags.