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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
540 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.
540 Customer Reviews

Glued up small rocks and mulch perfectly

[This review was collected as part of a promotion.] Just in time for sping makeover! I love the consistency. It is not watery. Holds up little pebbles together. It covers pretty much of my front yard plant bed. It is easy to use. Just add 1 part water and 1 part of rock and muclch glue . No more flying rocks or mulch when using a blower

April 15, 2026

From influenster.com

Works great!

[This review was collected as part of a promotion.] I really needed this product. We installed a new pergola and have a mulch flowerbed around it. One issue we keep having is wildlife and pets messing up the mulch. This product helps lock it in place so I’m not sweeping mulch off the pavers every single day. It’s super easy to use and it is clear so you don’t have to worry about discoloration. I love it!

April 15, 2026

From influenster.com

Glue

[This review was collected as part of a promotion.] This product worked just as it said it would. The instructions were so easy to understand and follow. The product didn’t have an overwhelming smell. It was such a pleasant experience to use!

April 15, 2026

From influenster.com

PetraMax

[This review was collected as part of a promotion.] The application of this mulch and rock glue is incredibly straightforward , making it easy to secure garden beds . It provides a strong , environmental - friendly bonding that keeps materials in place without harming the soil. The consistency of the liquid is perfect for a smooth spray , and the final results are impressive , leaving the landscape looking tidy and professional for a long time!

April 15, 2026

From influenster.com

Works great

[This review was collected as part of a promotion.] This outdoor mulch and rock glue works great for locking in your flowerbeds and walkways. Instructions are very clear and easy to understand. Adhesive is very strong and holds really well.

April 15, 2026

From influenster.com

Stop Fixing Your Landscape Locks Your Landscape in Place

[This review was collected as part of a promotion.] I have a dirt line about 1 1/2” wide that’s between my outdoor rock stairs & brick patio. When it rains, it becomes a muddy mess where debris settles. I like PetroMax because it’s easy to apply with a sprayer and the mixture is white, so I can see where to apply. It dries clear & keeps the dirt from traveling down the slope or onto the the bricks. I’m happy with the results.

April 14, 2026

From influenster.com

Awesome product. A must have for your landscaping.

[This review was collected as part of a promotion.] Thanks to Influenster and PetraMax for this complimentary product in exchange for my honest review. Came in sealed package. I was super excited to receive this product since basically all my landscaping is with river rocks. Super easy instructions, just mix with water and spray. Leaves a shiny finish on them which I like. Small rocks are set and not moving. No issues after wind and rain storm. I used what i needed to mix up then stored remaimin...

April 14, 2026

From influenster.com

Easy to mix

[This review was collected as part of a promotion.] This product is easy to mix and apply. Make sure area is completely dry before applying application. The thickness of the glue is just right. Not too messy or runny. Must try!

April 14, 2026

From influenster.com

Great for landscaping rocks, easy to apply, highly recommend

[This review was collected as part of a promotion.] This product was easy to mix and use. One thing to note is you will need to buy an inexpensive gallon sprayer. The glue reminded me of the glue you used as kid the smell wasn’t too strong just smelled like glue. Didn’t realized it was meant for smaller rocks however still did well on the rocks we had. Will buy another jug of this to secure them more but the two coats we put on there held them together pretty well. Drying time was just as it sta...

April 14, 2026

From influenster.com

Lockscape PetraMax Outdoor Mulch and Rock Glue Concentrate for Landscaping works really well

[This review was collected as part of a promotion.] Lockscape PetraMax Outdoor Mulch and Rock Glue Concentrate for Landscaping works really well. Preparation and application is really easy. Mix 1 part solution 2 parts water and apply with a spray. Let dry for about 12 hours and it looks like you petrified the rock. Make sure you apply when it sunny and warm.

April 14, 2026

From influenster.com

Impressed

[This review was collected as part of a promotion.] Used this glue to help keep rocks around the retaining wall instead of washing away! It is doing its job for sure. I’m going to use it again when I do my flower beds with rock!

April 14, 2026

From influenster.com

Works exactly as promised

[This review was collected as part of a promotion.] I am absolutely OBSESSED with this landscaping glue. I live in a windy and rainy area- my mulch just does not stay put. It washes and blows away and leaves the area looking raggedy. I used a one gallon sprayer and followed the simple instructions. The first photo is how my mulch looks usually- shortly after placing it. It was easy to mix, sprayed well and had easy to follow instructions. The packaging was easy to read and pour into the sprayer ...

April 14, 2026

From influenster.com

Keeping it looking good!

[This review was collected as part of a promotion.] We bought this gorgeous plant today and needed to add mulch around it! With all the squirrels and animals this locks ale mulch & glue rock is perfect to make sure they don’t mess up my mulch and it stays looking good! It was easy to use with just mixing it equal parts with water and is nontoxic! It’s a win win!!

April 13, 2026

From influenster.com

Beauty and less work

[This review was collected as part of a promotion.] The consistency of the glue is not so thick you can’t move it around like you want it to it mixes well and the odor is not as strong as I thought it would be. This is an excellent product for the value. I can’t wait to fix all of my trees and flower gardens.

April 13, 2026

From influenster.com

Pristine landscape

[This review was collected as part of a promotion.] This product is easy to use to get the landscaping I seek. It adheres well to rocks and mulch and keeps the elements in place perfectly after it dries. It is easy to apply and isn't messy to use. I like the size of the container and I like the drying time. Cleaning up after the product use is very easy and the end result is pristine.

April 13, 2026

From influenster.com

Easy to use

[This review was collected as part of a promotion.] This product is easy to work with. Low odor. I was surprised at the results after using it. Minimal packaging. Can’t wait to try more projects with this product.

April 13, 2026

From influenster.com

Shocked at how great this is

[This review was collected as part of a promotion.] This is actually amazing. I did one test spot and it is solid without changing the appearance at all. I was super skeptical that it'd be shiney or patchy but it's a very strong hold . It's super easy to apply and goes a very long way since it's concentrated any you mix with water. It wasn't messy and easy to apply.

April 13, 2026

From influenster.com

Good product for small pebbles

[This review was collected as part of a promotion.] Easy to use on pea gravel or small pebbles. Most importantly you have to follow the directions for the best adhesion and performance, directions are simple.

April 13, 2026

From influenster.com

Easy to use and looks great

[This review was collected as part of a promotion.] We installed this outdoor fire pit area two years ago with the intention of using some sort of rock glue to keep the pebbles in place. Thanks to Influenster we got to try it for free and it resulted in me buying several more containers to finish off the entire area. Holds the rocks well and is easy to use. Big fan of the product. This will make walking down the path more enjoyable as the pebbles would cave under the weight of footsteps and ...

April 12, 2026

From influenster.com

Great Mulch/Rock Glue

[This review was collected as part of a promotion.] This was very easy to use and works very well at keeping mulch and rock in place. I was able to try it on both and plan on getting more. The instructions were easy to follow. I just wish it came with a sprayer. It was the perfect amount and no cleanup was necessary. It seems to be a good value for the amount you get.

April 12, 2026

From influenster.com