How to Select & Use a Landscape Adhesive for Concrete Paving Stones or Retaining Walls

Choosing the right adhesive for your hardscape project can mean the difference between lasting results and costly repairs. This complete guide shows you exactly which adhesives work best for paving stones and retaining walls—and how to apply them correctly for maximum durability.

In this video, we break down the most effective adhesives for concrete hardscape projects, including caulk-style options like Surebond SB-15 and SB-20, as well as newer spray foam technologies. You'll learn which adhesives handle freeze-thaw cycles, which set up fastest for tall walls, and which work best in wet conditions. Whether you're a DIY homeowner or professional contractor, understanding adhesive selection and proper application techniques will ensure your caps, step treads, and wall blocks stay firmly in place for decades.

You'll learn:

The best caulk-style adhesives for different weather conditions and project types
When to use rapid-setting vs. flexible adhesives for optimal performance
How spray foam adhesives compare to traditional caulks (coverage, setup time, flexibility)
The critical application pattern that prevents moisture damage and lime staining
Special adhesives for wet-weather installations in the Pacific Northwest
Why common construction adhesives often fail on hardscape projects

We cover proper application techniques, including the correct bead patterns that prevent trapped moisture and ensure long-term bond strength. This expert guidance helps you avoid the most common adhesive mistakes that lead to cap separation and wall failure.

Ready to start your hardscape project with confidence? Visit westerninterlock.com to explore our complete line of paving stones and retaining wall blocks, or subscribe for more professional installation guides.

00:00 Intro
00:35 Surebond Rapid Set (SB-15)
01:03 Surebond Flex-Bond Adhesive (SB-20)
01:40 Loctite PL
03:05 SuperWet Adhesive
03:45 SRW SF-8 Sprayfoam Adhesive
04:51 Conclusion