A two component, mix-in-the-bag expanding foam for supporting non-structural posts such as fence, mailbox, and sign posts.

This two-part, pre-proportioned polyurethane expanding foam has been specifically formulated to provide a lightweight, mix-in-the-bag, fast-setting solution. This high strength backfill can be used for wooden, PVC and steel in-ground supports.

• Simple application – just roll, mix, cut and pour
• Sets in as fast as 3 minutes
• High strength and resistant to uptake of water
• Seals and protects base of post
• Compatible for use in cold conditions without the need for additives