Pro-Set post fix is a two-part, pre-proportioned polyurethane resin which when mixed produces an expanding foam. It has been specifically formulated and packaged to provide a lightweight, self containing mix, and fast-setting backfill for wooden, PVC and steel in-ground supports.


  • A 2-component, pre-proportioned polyurethane resin that produces an expanding foam for supporting posts/poles of all sizes
  • Suitable for all types of posts including wood, steel and PVC
  • Lightweight pouch replaces two 50-lb bags of post mix
  • No water or special tools needed
  • Sets in 3 minutes and cures in 2 hours


1 gallon 2.2 cu feet 3802 cu inches
2 gallon 4.3 cu feet 7430 cu inches
3 gallon 6.5 cu feet 11232 cu inches

Proset Post Setting Mix


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