PetraMax Mulch Glue for Landscaping Rocks Max Concentrate, Weed Barrier - Non-Toxic Pea Gravel Binder, Mulch & Rock Glue for Landscaping, Landscape Rock & Gravel Stabilizer - Dries Clear (1 Gal)

Have the area around my standby generator slab that needed some landscaping touches, so I put some decomposed granite around it and made the area look pretty. Of course, Mother Nature had other plans after some rainstorms this Spring where the stone stayed in place, but the area had shifted and pock-marked from the rain. Already had the Petra 2-gallon sprayer so I got a small container of their rock glue, smoothed out an area with a concrete trowel and applied this product. Was I really surprised and impressed with the results! Not only has the treated area held up from the onslaught of rain and weather, but I was also really impressed with the quality of adhesion and hold when dry and the lack of "erosion" to that area. Will definitely get a larger container of the glue and complete the job but also have some left over to spot-apply where needed. As with anything that is left outside to the elements, reapplication to the entire area will be called for on possibly a yearly basis to maintain the looks and integrity of the granite landscaping.

Ok this is a game changer for people with large dogs. I have an area of my yard that can’t grow grass because of shade. I’ve created a rock walkway with mulch around it. Normally my dogs run through it and mulch and pea gravel flies everywhere. In a matter of a week it’s a giant mess. I used this on the mulch and pea gravel. My dogs run through it and everything stays in place. Simply amazing!!!

Terrible adhesion. I spent a ton of time cleaning my 3/8" river rocks and let them dry for 3 days. They were perfect for Install and the spray was mixed perfectly. I did 2 coats and the final dry product has the adhesion maybe to fight off a leaf. The rocks barely stick together and I did nearly 500sf of rock. The rock glue cost me nearly $250 and it wasn't worth 1 penny.

This mulch glue which I put down yesterday, appears to do the job. The one major drawback is the fact that it does not go a long way especially if you spray all of your mulch. I use 12 yards of mulch in my landscape so I only did around the edges and places where water washes away the mulch. I barely finished one coat for my front yard. Now need to order another to work on my backyard in the same manner. Doing 2 coats will take me broke.

Delivery was super fast, and the product was easy to spray on. It dries really quick and stones are solid. The stones did turn a little darker (as if they were washed and the dust came off them) but they look even nicer against the pavers. Make sure you wash you sprayer straight away!

As a concentrate, I had to mix with water and spray using my lawn sprayer. The concentrate was so lumpy, I had to strain it first. The product works well, but was a hassle to mix.

Accidently order mulch glue instead of rock glue for a customers landscape job got ahold of the company and Christina helped through the process and got the right product replaced with good communication and huge help.

Unfortunately, the glue did not last through a Midwest winter with no traffic. Between the wet and cold of winter, my pebble rocks are as loose as when I laid them down in the summer. I was hoping for a permanent solution. Worked well in the summer into fall. I noticed degradation into late fall. The cold weather in a no traffic area that is shaded and can remain wet, not submerged, for days in the fall left the area as if they were untreated.