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Sika PRO Select PostFix®

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Sika® PostFix® is a two-part resin for anchoring fence and gate posts, or sign posts. PostFix® when mixed produces an expanding foam. This post anchoring product has been specifically formulated and packaged to provide a lightweight, mix-in-the-bag, fast-setting and high-strength backfill for wooden, PVC and steel in-ground supports. Sika® Post Fix is designed for easy, convenient and quick support of many types of post.


  • Packaged in lightweight, comfortable to handle pouches.
  • Easy and fast to prepare; just roll up pouch, open and pour.
  • Pre-proportioned for quality control and predictable performance.
  • Sets in 3 minutes (temperature related); allowing faster placing and support of posts.
  • High strength and resistant to uptake of water.
  • Suitable for use with wooden, PVC and steel posts.
  • Seals and protects base of post.
  • Pre-proportioned polyurethane resin.
  • Compatible with use in cold conditions without need for additives.

A two component, mix-in-the-bag expanding foam for supporting non-structural posts such as fence, mailbox, and sign posts. One pouch fills a 36" deep X 6" diameter hole when installing 4 X 4 square post.

  • Simple application - just roll, mix and pour
  • Replaces 60kg (130lbs) of concrete
  • Install fence in 2 hours
  • No mixing tools or water required
  • No mess EZ-mix pouch, just roll-up pouch, mix, open and pour
  • Sets in 3 min (temperature related)
  • Suitable for use with wooden, PVC and steel posts
  • Use in cold conditions without need for additives
SikaPost Fix
Thickness 9"
Width 8"
Length 1.5"
Size 976ml
Brand Sika
Product Collection PostFix
Type Fence Repair
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