Post Fix: Rapid Hardening Concrete

Post Fix is a 10mm concrete formulated for sub-surface use and fast installation of posts, signs, fences, street lighting, speed cameras and road side barriers. This professional grade concrete is fast setting and has an impressive compressive strength of 41N/mm².

  • Workability: 5 – 10 minutes
  • Set time: 15 minutes
  • Two-part mix
  • Easy mix
  • Size: 25kg plastic bag
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Nicola Duckett

“Yorkshire Water trust Instarmac to provide us with quality reinstatement materials.  All of the team are a pleasure to work with and always willing to help.”

Yorkshire Water