Sikaflex 1a Flexible Non Sag High Performance Polyurethane Concrete Masonry Sealant for Vertical and Horizontal Surfaces. Half Case - 10 20oz Tubes. Aluminum Gray

once I got use to pushing it into the cracks, it was a breeze to work with. I have used the product before installing trench drains and when I saw the discounted price, I closed the deal!!!!!

This sealant is exactly what I wanted to fill the gaps between my driveway slabs. Easy to apply.

Great stuff