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Fastmix | Fence Post Mix Concrete

Fastmix | Fence Post Mix Concrete

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Pack Size

For best prices; select a larger pack size and adjust the quantities accordingly.

Each bag contains 20kg of premixed rapid set fence post concrete.

Easy to use, just add water following the instructions, and the mixture will be set in as little as 10 minutes.

The post mix can be used on wooden/timber, concrete, and steel posts, as well as for signposts, bollards, and other general concrete applications.

It is suitable for use in private gardens, public spaces, and commercial environments.

This post mix is the exact same product that we supply to our fencing contractor clients who are installing 100s of fence posts across the UK on a daily basis. So, you can be confident this is a quality product up to any post installation task.

Post Installation Guidance:

  1. Dig a hole of sufficient depth for the post, and at least 3 times the width of the post.
  2. Insert the post, and once properly aligned, support the post in position using batons or other suitable support.
  3. Empty half the contents of the Fastmix post mix bag around the base of the post and pour 1 litre of clean water directly around the post.
  4. Empty the remainder of the bag around the post and pour another litre of water into the post mixture.
  5. After 10 minutes the post will begin to set. After 1 hour it should be suitable for fitting the fence panels.

For full installation instructions, see the Fastmix Product Datasheet downloaded here.

Fastmix Technical Details:

Bag weight: 20 kg

Mixture compressive strength: 25-30N/mm2 after 28 days (dependent on proper installation)

Setting time: 10-15 minutes (may be longer in low temperatures)

Health & Safety Details:

Cement powder mixed with water may cause skin and eye irritation, therefore we advise the use of gloves and protective eyewear as a precaution when using this product.

For full health & safety information, download the Fastmix COSHH Safety Datasheet here.

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