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64 oz Clear Mulch Glue Concentrate

Ratings & Reviews for Petra 64 oz Clear Mulch Glue Concentrate

4.7
538
Review
 4.7 out of 5
539 Reviews


100% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise this mulch and rock glue as a transformative landscaping solution. Reviewers consistently report that it effectively locks mulch, rocks, and gravel in place through harsh weather, heavy rain, and strong winds, with many noting materials remain undisturbed for weeks or months. The concentrated formula is easy to apply using a standard sprayer at a 1:1 ratio, dries clear, and covers large areas economically. Most appreciate the non-toxic, pet-safe, water-based formula. Nearly all customers recommend it as a worthwhile investment for eliminating constant landscaping maintenance.

Customer review summary generated by AI, including incentivized reviews.
539 Customer Reviews

Good product

[This review was collected as part of a promotion.] My weather has not been mild enough for me to actually use this glue concentrate yet. When my weather allows, I have so many plans for this glue. I want to make a landscape rock walkway.

March 16, 2026

From influenster.com

Definitely a product I will keep on hand!

[This review was collected as part of a promotion.] I am giving Lockscape mulch and rock glue a full five stars! While it is marketed for outdoor landscaping I use it for my reptile aquarium and terrariums and it works incredibly well. It’s perfect for securing rocks substrate moss and small pieces of decor so everything stays in place. One of the big reasons why I love it it’s because it is non toxic and pet friendly which is very important when you are creating habitats for reptile and aquatic...

March 16, 2026

From influenster.com

Amazing

[This review was collected as part of a promotion.] This was by far one of the coolest things I’ve gotten from Influenster. I started a rock garden last year and lost a lot of my gravel while leaf blowing in the fall and winter. This stuff locked the replacement gravel DOWN!!! I’m going to have to purchase a bottle to finish the job but it’s well worth it!!!

March 16, 2026

From influenster.com

⭐⭐⭐⭐⭐ Game Changer for My Gravel Areas I recently tried Petramax Lockscape Rock Glue Max, and I’m honestly impressed with how well it worked. I had a section of decorative gravel in my yard that constantly shifted and scattered every time it rained or so

[This review was collected as part of a promotion.] I recently tried PetraMax Lockscape Rock Glue Max, and I’m honestly impressed with how well it worked. I had a section of decorative gravel in my yard the constantly shifted and scattered every time it rained or someone walked across it. I was tired of raking and fixing it over and over again, so I decided to give this product a try. The application was simple and straightforward. After spraying it all over the gravel, I let it sit, and the di...

March 16, 2026

From influenster.com

Great adhesive

[This review was collected as part of a promotion.] Great adhesive. Very effective and easy to use a simple process I could follow within much skill. The ingredients were very good and stable making the mixing process simple. Let my landscaping process be a simple task that will last

March 15, 2026

From influenster.com

Works great for high traffic areas in your yard!

[This review was collected as part of a promotion.] This pea gravel project turned out great, and the PetraMax rock and mulch glue concentrate made all the difference! We added the gravel al9ng our fence line because our dogs like to chase the neighbors cars and we could never get the grass to grow there..... and it became a muddy mess when it rained. After applying the glue, the gravel stays nicely in place and looks soybean and neat! It was easy to apply and has solved a major problem we were ...

March 15, 2026

From influenster.com

Good Glue For Landscaping

[This review was collected as part of a promotion.] This product was so neat! Easy to mix up and put in a sprayer! I did a strip along the rocks as pictured and it seems to be holding up well so far! Does not have a lot of fumes that stood out to me! Loved the product but not sure that I would purchase in future. Only because it seems to be a lot more work!

March 15, 2026

From influenster.com

Smooth, shine, professional.

[This review was collected as part of a promotion.] I love this Outdoor Mulch and Rock Glue Concentrate for landscaping. The Performance was amazing, and coverage is a miraculous. It coverage the area perfect and make my rock look professional. I did not smell no odor.

March 15, 2026

From influenster.com

Improved the appearance of the rocks

[This review was collected as part of a promotion.] I used this PetraMax Outdoor Rock glue on two different sizes of rocks. It sprayed on easily, and left a slightly shiny appearance compared to the non-treated rocks nearby. It was a warmer, sunnier day, so it seemed to dry quite quickly. I’m hoping it holds up well over time. I did not test it out on mulch. For my landscaping needs, the rocks seemed like a more useful fit.

March 14, 2026

From influenster.com

Great idea

[This review was collected as part of a promotion.] This stuff is genius. It keeps my Rick from moving when I leaf blow and weed eat. This is most efficient for landscaping. It also keeps animals from digging

March 14, 2026

From influenster.com

Must try

[This review was collected as part of a promotion.] I'm really impressed with Petra Max outdoor Mulch and Rock Glue concentrate for landscaping. It was easy to mix and apply with a garden sprayer, and it helped my mulch and small rocks neatly in place.

March 14, 2026

From influenster.com

Easy Application

[This review was collected as part of a promotion.] The PetraMax Outdoor Mulch and Rock Glue is so easy to use. I used a garden sprayer to make an even layer. I love that it is water-based. The container is more than big enough to use in both of my garden beds. One is rock and one is mulch, so it's perfect. It's great that it's pet-safe and nontoxic. The finished product is a seamless, professional looking garden beds. It has withstanded hail, rain, etc. This product was provided to me by Influe...

March 13, 2026

From influenster.com

Great coverage

[This review was collected as part of a promotion.] Instructions on how to use the correct amount for the area you're trying to cover. It does a good job of getting down in the rocks and doesn't just sit on top. I was afraid it would leave a glossy finish on top, but it doesn't.

March 13, 2026

From influenster.com

Must have—landscaping glue

[This review was collected as part of a promotion.] This outdoor glue is very high quality and last a long time with a single application. It mixes in very well with the mulch and rocks and leaves a nice clear finish in no time.

March 13, 2026

From influenster.com

Great for landscaping!

[This review was collected as part of a promotion.] This is a great product to use for any at home landscaping project! It’s easy to mix and use for side walks, edging and flower beds. It’s affordable and makes it’s so easy to have a beautiful yard.

March 13, 2026

From influenster.com

So excited for this!

[This review was collected as part of a promotion.] We are redoing all our landscaping. This is gonna help keep it all in place. Of course the the weather has to participate for me to get to use it. I’m so excited to try it. Small bottle covers 225sq ft. Easy to use instructions and it’s concentrated so has to be diluted. Dries quickly.

March 12, 2026

From influenster.com

Great outdoor mulch and rock glue!!!

[This review was collected as part of a promotion.] The application of the rock glue was pretty easy and straightforward. You just need a pump sprayer to use it. It has pretty good coverage. It covered a large portion of the rocks I wanted to lock into place. I’m still working on it, but so far, so good. It dried pretty fast, and the rocks are staying in place. We’ll see how it lasts though, but I’m pretty impressed and will be purchasing more. It's not super expensive and a great value in my o...

March 12, 2026

From influenster.com

Great glue for stone

[This review was collected as part of a promotion.] I never tried rock or mulch glue before I received this product but I'll say this I wish I knew about it beforehand. This helped save my pea gravel that I had on the ground around a water meter box from rolling into the meter box anytime I lifted it up to turn the water on and off. It's really easy to apply. you mix it with water in a backpack sprayer and you spray it on the rocks. Once you spray on the rocks all you have to do is get a rake an...

March 12, 2026

From influenster.com

Game changer!!

[This review was collected as part of a promotion.] Love your look of your rocks but tired of them working their way places they don’t need to be? This glue spray sets them in place. Low odor and it’s very durable. It’s clear and perfect!

March 11, 2026

From influenster.com

Weather approved

[This review was collected as part of a promotion.] This is like answer to my prayers no longer do I have to worry about putting molds down and have it going anywhere this is amazing it doesn't degrade with weather keeps the appearance very durable I highly recommend this if you want a beautiful yard

March 11, 2026

From influenster.com