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19,579+ trusted reviews
Ready to Use Formula
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Description
PetraMax Lockscape Mulch Glue Max is a powerful adhesive for mulch that locks down mulch, bark, pine straw, sand, and small pebbles for up to 12-24 months. The advanced formula stops erosion from wind and heavy rain, preventing washouts and keeping your garden beds intact. This landscape lock glue dries completely clear and is non-toxic, making it safe for pets and children once dry. Your landscaping stays stable, vibrant, and protected without constant maintenance.
America's Most Trusted Mulch Glue
No mixing. No VOCs. 100% permeable. Holds all season. Made in The USA
Spray It. Don't Fear It.
No VOCs. No harsh chemicals. No warning labels longer than the instructions. Safe for pets, kids, plants, and soil once cured.
Water Still Gets Where It Needs To Go.
The bond flexes, not seals. Rain, irrigation, and runoff pass straight through to the roots and soil below — no pooling, no suffocating your plants.
Apply Once. Forget About It.
One application holds up to a year through the worst weather, heaviest foot traffic, and wildest pets.
Made in the USA. Not Imported.
Most mulch glues are manufactured overseas with no safety data. Ours is formulated, tested, and produced in the USA.
Easy Application
Clean it. Spray it. Forget it. That's the whole process.
Step 1
Clean Your Mulch Bed. Make sure mulch is dry
Step 2
Spray three coats. Use the included pump sprayer with a cone or flat nozzle. Let dry 2–4 hours between coats. About 20 minutes total.
Step 3
Cure & Enjoy Keep dry for 24–36 hours. Then walk on it, play on it, let the dogs run on it. Your rock isn't going anywhere.
Step 1
Clean Your Mulch Bed. Make sure mulch is dry and spread evenly at 1"–1.5" depth.
Step 2
Spray three coats. Shake the bottle. Pour into your garden sprayer. Apply one even coat. Lightly rake and turn the mulch. Apply two more coats and tamp down.
Step 3
Let It Cure Keep area completely dry for 24 hours. Then let the rain come. Let the dogs run. Let the kids play. Your mulch isn't going anywhere.
Great Product!
Excited to have a product that is safe for kids to still be able to play freely and keep the house looking nice!
— Ruth D.
Verified Purchases
Mixed results
Some areas great, some not so much. Not sure what I did differently. The flat sections are perfect but the sloped area needed extra coats.
— Tom B
Verified Purchase
Simple application process
Mixed it in a bucket, poured into sprayer, done in 20 minutes. Dried overnight. Everything stayed put. No complaints.
— Chris D
Verified Purchase
Love it!
So easy to use and works perfectly. Mulch beds look amazing and I don't have to constantly fix them anymore.
— Samantha Lee
Verified Purchase
How We Compare
Here's what most mulch glues won't tell you.
Mulch Glue Max
Made in USA with quality control
100% VOC-free formula
100% water-permeable
Pet safe, kid safe, plant friendly
Flexible bond survives freeze-thaw
Holds up to 12–24 months
Helps reduce weed growth
Dries clear with natural finish
Other Bonders
Unknown origin, no oversight
May contain harmful VOCs
Blocks drainage
Unknown safety
Cracks and fails in cold
Washes out in weeks
No weed prevention
May discolor or leave residue
Real Yards. Real Results.
Don't take our word for it. Take theirs.
Customer Reviews
Haven’t used the max that mix with water but have used the ready to spray and it works ok so far
Steve
After three coats (add one more coat because of area) it's holding up and looks pretty good! Hopefully it will last at least eight or more months. Plan on buying more very soon. It's easy to use and clean. I have the Sprayer , Awesome.
The instructions are pretty clear. It took me a week to get started. This morning I just finishe a 3rd coat. A couple arear fairly thick pea gravel so I went over it again. Hopefully that did the trick
The glue definitely does work and holds the stones together very well.
Easy to work with, great stuff
Every Concern Answered
Does mulch glue actually hold, and how strong is the bond?
Yes. Lockscape RTU penetrates between mulch pieces and bonds from the inside out. Two coats create a hold that stands up to rain, wind, washout, and regular yard use without shifting.
How long does it last?
Up to 6 to 12 months per application. In areas with heavy rain, strong sun, or steep slopes, a light touch-up coat may be needed sooner to maintain full locking strength.
Does it dry clear?
Yes, completely clear. It looks slightly milky during application so you can track coverage, then dries within 24 hours leaving a soft, natural shine with no film or residue.
Is it water-permeable, and will it affect drainage?
It creates a flexible bond, not a solid seal. Rain, irrigation, and runoff pass straight through to the roots and soil below with zero pooling or drainage problems.
Is it safe for pets, kids, plants, and soil?
Yes. Zero VOCs, zero toxins, and completely non-toxic once cured. Safe for pets, children, vegetable gardens, tree rings, and any planted bed once the 24-hour cure window is complete.
Will it clog my sprayer?
No. The formula flows smoothly and won't block your nozzle when used correctly. Use a standard pump sprayer and rinse it with warm soapy water immediately after finishing your application.
What surface prep is required, and how many coats should I apply?
Clear the area of debris, make sure mulch is dry, and check the rain forecast before starting. Apply two even coats for the best hold. One gallon covers up to 150 square feet per coat.
How long does it take to dry?
Lockscape RTU cures in approximately 24 hours under normal conditions. Keep the treated area completely dry during the full cure window for the strongest, longest-lasting bond.
Does it work on slopes and high-traffic areas?
Yes. It is specifically designed for runoff-prone spots like slopes, downspout areas, and pathway borders. Once fully cured, it holds through heavy rain and regular foot traffic without breaking down.