High-Quality Expansion Foam - Pack of 15 Bags for Home Insulation, DIY Projects & Construction Repairs | Waterproof & Durable Sealant

Product Description

This revolutionary, one-of-a-kind product was created with one goal in mind; simplify a difficult process satellite installers face daily. 250-750 is a hydrophobic two-part polyurethane Composite Backfill that expands to fill the peripheral void between a post and the hole. It forms low-density, high-strength composite that can structurally support the post and maintain its upright positioning. It expands immediately after mixing and reaches 50% of full strength in approximately 3 minutes and is fully cured in approximately 2 hours. Saves on Labor and time!