Excellent

4.8

|

19,579+ trusted reviews

HOUSTON HEAT TESTED. ON ACTUAL JOBS.

Rostro installs mulch, decorative rock, and edging across Houston year-round. The job that holds the longest is the one that gets bonded. Here's the bottle they keep in the truck.

Slide 1 of 8
Product shot of four jugs of Petramax Lockscape Rock Glue Max, a sprayer, and orange gloves.
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Excellent

4.8

|

19,579+ trusted reviews

HOUSTON HEAT TESTED. ON ACTUAL JOBS.

Rostro installs mulch, decorative rock, and edging across Houston year-round. The job that holds the longest is the one that gets bonded. Here's the bottle they keep in the truck.


FREE Gifts with Purchase

FREE

Free 1-Gallon

FREE

Free Shipping

FREE

Free Rock Sprayer

FREE

6 Free Nozzles

FREE

Free 1-Gallon

FREE

Free Shipping

FREE

Free Rock Sprayer

FREE

6 Free Nozzles

3

ADD TO CART

$239.97
$79.99
$239.97
$79.99

2–3 business day delivery

Memorial Day Sale: Buy 1 Get 1 Free

5

Days

:

06

Hours

:

09

Minutes

:

15

Seconds

What Pros Know That Homeowners Don't

Zero Toxins.

Zero VOCs. Zero PFAS. Plant-friendly. Pet safe, kid safe once cured. Safe to spec on any residential job.

Rain Drains Right Through

Houston rain hits hard. Flexible mesh — water drains through. Beds don't wash out. Callbacks drop.

Apply Once. Forget About It.

12–24 months of hold per application. Fewer return visits. Cleaner referrals.

Made in the USA. Not Imported.

Formulated in Carlisle, Pennsylvania. Tested at Mid South Lab. Something you can stand behind on a quote.

What We Do on Every Install

Clean it. Spray it. Forget it. That's the whole process.

Step 1

Clean Your Surface.

Standard prep. Surface clean, dry, materials set.

Step 2

Spray Two Coats.

Two coats with the included Ready-to-Use sprayer. About 20 minutes per section.

Step 3

Cure & Enjoy.

Cure 24–36 hours dry. Job's done — and it stays done for 12–24 months.

Why It's the One We Stock

Tried the rest. This is the one that doesn't bring us back to the property.

Rock 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

Free application kit

4,000+ verified 5-star reviews

Other Bonders

Unknown origin, no oversight

May contain harmful VOCs

Blocks drainage

Unknown safety

Cracks and fails in cold

Washes out in weeks

Sprayer sold separately

Mixed or limited feedback

Job Sites That Held.

Don't take our word for it. Take theirs.


Customer Reviews

Based on 221 reviews
81%
(179)
14%
(32)
2%
(4)
1%
(3)
1%
(3)
S
Stephen patton
Haven’t used the max that mix with water but

Haven’t used the max that mix with water but have used the ready to spray and it works ok so far
Steve

R
Robert Santiago
Works and Easy to Use!

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.

A
Anonymous
The instructions are pretty clear

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

A
Anonymous
It actually works!

The glue definitely does work and holds the stones together very well.

K
Kathy Erisman
Easy to work with

Easy to work with, great stuff

EVERY CONCERN ANSWERED

Is it safe for pets and kids?

Does water drain through?

How long does it last?

Does it stop weeds?

Will Rock Glue make my rock look shiny or plastic?