Patio Sealant
I knew when I filled the patio cracks with stone dust that I’d need to find a way to set the material in place. Of course, I didn’t get to it for a couple years… so weeds set in, over and over.
The first photo shows the patio with weeds coming up every crack. The second photo shows the patio (after hours of weeding) in the stages of sealing: dry pale brown unsealed stones at the left, milky white newly-applied sealant in the middle, and matte wet-look deeper brown at the right.