Petra Max Rock Glue for Landscaping, 32 Ounce - Ground Coverage & Pet Safe Mulch Glue for Rocks - Lockdown Gravel/Pebbles/Stones - Sticky Clear Gravel Binder & Decomposed Granite Stabilizer (50 Sq Ft)

I love this stuff. You can use it for more than just mulch. I used it on rocks I have decorated our drains in our yard. Very good quality and holds them in place.

It is takimg a lot of glue to complete our project, however we are pleased with the outcome so far. The product leaves a nice shine on the rocks .We are using medium/large river rocks in a 50 foot long x 1 foot river bed formation which is around 3 rocks thick. So far we have had to use three 32 oz bottles and not all rocks are bonded yet. We are ordering this gallon to hopefully finish the job of gluing all rocks. Going to mix the rocks in a bucket first this time then lay them down instead of just pouring mixture over the ones that did not adhere together. Hopefully that will do the trick.

This products did not work for my project. I was using it for crushed granite in a stone walkway that has been down for a few year. After 3 coats, the rocks are still loose. I understand this product was not used from the beginning, mixed in with the granite, but the online videos and directions shows how to apply when a granite (stone) is already installed. Be careful expecting their testimonials adding after the project is installed.

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!

I have used several gallons of this product and returned to this site only to inform you:1) the product is useful, but requires a lot of product and $$$2) each time I used the product, it ruined the sprayer (it’s glue. It’s thick. It hardens.)3) we began pouring the product into a paint tray, then dipping a large, soft, car wash brush into the glue, then slinging the glue onto the needed area4) you could also use a watering pot (holes won’t clog so easily)5) to adequately glue an entire area is expensive. We began to glue a 3 foot border around the important areas6) I don’t know another solution to holding mulch on a slope, but this one is expensive, difficult, and frustrating. But in the end, works pretty well

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.

Works great