Product data sheet for Sika PostFix, a fast-setting, mix-in-the-bag expanding polyurethane foam for backfilling wooden, PVC, and steel in-ground supports.
Sika PostFix is a two-part, pre-proportioned polyurethane resin designed as a lightweight, mix-in-the-bag, and fast-setting backfill for wooden, PVC, and steel in-ground supports. It is specifically formulated to provide easy and quick support for various types of posts, including fence gate posts, mailbox posts, signage posts, and lamp posts.
| Shelf Life | 1 year in original, unopened packaging |
|---|---|
| Storage Conditions | 5 to 32 °C (41 to 89 °F) |
| Service Temperature | -30 to 54 °C (-22 to 130 °F) |
| Coverage per pouch | Approx. 0.7 ft3 (20 L) |
| Initial Set Time | 3–5 minutes |
| Final Set Time | 2 hours |
| Mixing Time | 15 seconds |
It is ideal for wooden, PVC, steel, and aluminum supports.
Allow approximately 2 hours for the product to set completely before installing the fence or attaching gates.
Material must be pre-conditioned to between 65 to 77 °F (18 to 25 °C) for at least 2 hours before mixing and use.