Polymeric Stone Dust (Gator Dust) is a professional-grade jointing material specifically designed for natural stone patios, flagstone, and irregular surfaces with wide joints. Unlike traditional polymeric sand, this material is engineered to fill larger gaps while providing a durable, flexible bond that resists washout, weeds, and insect intrusion.
Once activated with water, the polymer binding agents lock the material in place, creating a stable joint that holds up to weather, traffic, and seasonal movement—without the rigidity of mortar.
This product is ideal for projects where a natural look is desired while still achieving long-lasting joint performance.
Coverage:
- Approx. 20–30 sq ft per 50 lb bag (based on 1"–2" joint width and depth)
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For wider or deeper joints, expect coverage toward the lower end of the range
Actual coverage will vary depending on joint size, depth, and stone layout.
Joint Size & Depth:
- Joint width: ½" up to 4"+
- Recommended depth: minimum 1", ideal 1.5"–2"
Proper joint depth is critical for long-term performance.
Best Applications:
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Natural stone patios (flagstone, irregular stone)
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Wide joint installations
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Walkways and outdoor living areas
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Projects requiring a natural, non-gloss finish
Key Benefits:
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Designed for wide joints (unlike traditional polymeric sand)
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Helps prevent washout, weeds, and insects
- Flexible bond allows for natural movement
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Maintains a natural, clean appearance
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Easy to install with water activation
Available Colors:
- Beige (Tan) – blends with warm, natural stone
- Gray – ideal for bluestone and modern applications
Installation Notes:
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Install on a clean, dry surface
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Ensure proper joint depth before application
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Compact material into joints for best performance
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Lightly mist with water to activate (do not overwater)