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HD4000 + Rock Glue Max 3G + Free 1G
Professional Mulch Restoration. Made Simple.
From greener lawns and healthier grass to stabilized rock and protected mulch beds, the Petra lineup delivers powerful outdoor solutions built to make every yard project faster, easier, and longer-lasting.
ROCK GLUE MAX (3 GALLONS + FREE 1 GALLON)
Professional landscape adhesive package designed for large-scale rock and gravel projects, helping stabilize decorative stone surfaces while providing extended coverage across expansive landscape areas.
4 Gallons Total Product
Helps Lock Rock & Gravel in Place
Large Coverage Capacity
Easy Spray Application
WHY PICK ROCK GLUE MAX
Ideal for large landscape installations
Helps reduce stone displacement
Minimizes washout from rain and runoff
Covers multiple rock beds and pathways
Reduces ongoing maintenance
Pro Series Available
HD4000 BACKPACK SPRAYER
Professional battery-powered backpack sprayer engineered for efficient application across large properties with consistent pressure and reliable coverage.
Battery-Powered Operation
Large Capacity Tank
Adjustable Pressure Control
Comfortable Backpack Design
HD4000 ADVANTAGES
Covers large projects efficiently
Fewer interruptions for refills
No manual pumping required
Consistent spray performance
Comfortable for extended operation
Professional-grade application
Stabilize More Stone. Maintain Less.
The HD4000 and Rock Glue Max 3G + Free 1G bundle helps homeowners tackle larger rock and gravel installations while keeping decorative stone cleaner, more organized, and better protected.
FOUR GALLONS OF COVERAGE
With four total gallons included, this bundle is perfect for expansive rock beds, decorative pathways, drive borders, and large landscape projects.
HELP REDUCE STONE MOVEMENT
Rock Glue Max helps bind decorative rock and gravel together, reducing displacement caused by weather, runoff, and foot traffic.
PROFESSIONAL RESULTS ON A LARGER SCALE
The HD4000 backpack sprayer provides consistent coverage across extensive landscape areas, helping complete projects faster and more efficiently.
HOW HE'LL USE IT THIS WEEKEND
01
PREP THE ROCK AREA
Level decorative stone or gravel and remove debris to create a clean surface before application.
02
FILL THE HD4000
Add Rock Glue Max according to label directions and prepare the sprayer for use.
03
SPRAY FOR COMPLETE COVERAGE
Apply an even coat across the rock surface using smooth, overlapping passes throughout the project area.
04
ENJOY A MORE STABLE LANDSCAPE
Allow the product to cure and enjoy rock beds and pathways that stay cleaner, more organized, and easier to maintain.
EVERY CONCERN ANSWERED
What comes in my Father's Day bundle?
Each bundle includes a PetraTools sprayer paired with a premium PetraMax product. The exact contents are listed on the product page before checkout.
Is this bundle suitable for beginners?
Yes. Whether you're maintaining a lawn, landscape, rock bed, or mulch area, our sprayers are designed for easy setup and application.
Can I use the sprayer for other PetraMax products later?
Absolutely. Your sprayer can be cleaned and reused with a variety of compatible PetraMax lawn and landscape solutions.
Is this a limited-time Father's Day offer?
Yes. These exclusive bundle savings are part of our Father's Day promotion and are available while supplies last.
What if I need help using my products?
Our U.S.-based customer support team is here to help with setup, application guidance, and any questions about your bundle.