Excellent
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19,579+ trusted reviews
Ultra Concentrated Formula
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Free 1-Gallon
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Free Mulch Sprayer
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6 Free Nozzles
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6 Free Nozzles
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Free Rock Sprayer
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1 Free Gallon
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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
Zero toxins. 100% permeable. 6+ months of hold. Made in the USA.
Zero Toxins.
No VOCs. No harsh chemicals. No warning labels longer than the instructions. Safe for pets, kids, plants, and soil once cured.
Rain Drains Right Through
100% water-permeable. Creates a flexible mesh, not a solid seal. Rain, irrigation, and snowmelt drain right through.
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.
Proudly made in USA for reliable, consistent performance in real-world conditions. Dependable quality you can count on,
season after season.
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.
Huge savings on bulk orders
We switched to PetraMax for our larger landscaping jobs and immediately noticed the cost difference. The contractor pricing makes a real impact on our margins without sacrificing quality.
— Jason R.
Verified Purchase
Worth every gallon
The strength of the Mulch Glue™ is impressive. It locks everything in place and reduces callbacks. It’s reliable, and that’s what matters most on commercial projects.
— Michael D.
Verified Purchase
Fast shipping & easy ordering
Ordering online was simple, and the product arrived right on time. No delays, no complications — just what we needed to keep our crew moving.
— Stephanie L.
Verified Purchase
Best contractor supplier we’ve used
Between the bulk discounts and the heavy-duty performance, PetraMax has become our go-to for rock and mulch stabilization on every large project.
— Daniel P.
Verified Purchase
How We Compare
See why homeowners are choosing Mulch Glue Max.
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.
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.
