Overview
Developed by Rob Orlando at Hybrid Athletics, Hybrid Stone Molds are a premier solution for Strongman athletes to create custom-sized Atlas Stones. These molds eliminate the astronomical shipping costs of pre-cast concrete stones by allowing users to pour their own implements locally. The two-hemisphere design is engineered for easy assembly and stripping, producing stones featuring the distinctive Hybrid “H” logo.
Product Page: Hybrid Stone Molds
Key Features and Specifications
Construction: Durable, lightweight plastic hemispheres designed for repeated use.
Branding: Finished stones include an embossed Hybrid "H" logo.
Assembly: Two halves are re-connected securely using zip ties (included).
Available Sizes & Estimated Weights:
10”: ~35 LB
10.75”: ~50 LB
12”: ~65 LB
13”: ~95 LB
14”: ~115 LB
14.5”: ~130 LB
15”: ~145 LB
15.5”: ~160 LB
16”: ~173 LB
17”: ~215 LB
18”: ~250 LB
18.5”: ~275 LB
19”: ~300 LB
Sets Available: Women's (10-12-13), Men's (13-14-15), and Mammoth (All sizes 10-18).
Origin: Made in the USA.
Performance Benefits
Cost Efficiency: Drastically reduces the cost of building a full stone set by avoiding the freight shipping of heavy concrete.
Easy Stripping: The two-hemisphere design allows athletes to fill the bottom half before attaching the top, speeding up the pouring process and making it easier to remove the mold after the stone cures.
Professional Finish: Produces stones with a clean surface; any minor seam lines can be easily smoothed with sandpaper.
Customization: Athletes can adjust the final weight by varying concrete types or inserting internal cores (e.g., lead shot for heavier stones or foam for lighter stones).
Maintenance and Care
Pre-Pour Preparation: Clean the inside of each hemisphere and apply a lubricant (like vegetable oil or a release spray) to ensure the concrete does not bond to the plastic.
Stabilization: Always position the mold on a stable base during the pour, such as a turned-over tire or a sand pit, to prevent the mold from shifting or flat-spotting.
Curing: Allow the concrete to set for at least three days before using a tap stick to wedge off the hemispheres.
Cleaning: Scrape off any concrete residue from the seams and interior after each use. Store the halves in a cool, dry area to maintain the integrity of the plastic.
Zip Tie Inspection: Ensure the seam holes are clear of debris so zip ties can pull the halves together tightly, minimizing water loss and seam lines.
Warranty Information
Hybrid Stone Molds are designed for durability and multiple uses.
Note: Warranty typically covers manufacturing defects in the plastic. Damage caused by improper support (leading to cracks) or aggressive stripping techniques may not be covered. Contact Rogue customer service if cracks develop under normal intended use.
Frequently Asked Questions
Q: What concrete should I use? A: High-strength concrete mixes (like Quikrete 5000) are commonly used. The final weight will fluctuate based on the specific mix and water ratio used.
Q: Do I need a special funnel to fill it? A: While you can use a makeshift scoop, Rogue offers a dedicated Hybrid Funnel designed to fit the mold's opening for a cleaner and more efficient pour.
Q: Can one person assemble and fill these? A: Yes. The lightweight nature of the plastic makes them easy to manage, though the final concrete-filled mold will be very heavy and should be filled in its final curing location.
Q: Why are there zip ties? A: Zip ties provide a simple, high-tension way to pull the two hemispheres together along the seam, ensuring the sphere remains round and the concrete does not leak.