The KBI Flexi® product line is a comprehensive suite of sustainable construction materials manufactured from recycled scrap tires, developed by K.B. Industries (KBI) since 2001. The flagship product, KBI Flexi®-Pave, is the world's first flexible porous paving system and has become the preferred surface solution for municipalities, national parks, universities, and government institutions across the United States.

Each square metre of KBI Flexi®-Pave uses four recycled passenger tires. The material supports loads up to 80,000 pounds without cracking, filters dissolved nitrates and orthophosphates by up to 88%, and allows thousands of gallons per hour of groundwater recharge. Unlike traditional asphalt or concrete, it does not crack under freeze-thaw cycles, making it highly effective in cold and extreme climates, and its flexibility allows it to absorb ground movement without breaking. The porous surface produces no standing water and remains skid-resistant in wet conditions, while its cooler surface temperature reduces urban heat island effects in warm climates.

Real-world deployments include Yellowstone National Park, where it replaced asphalt trails failing under severe freeze-thaw conditions; Arlington National Cemetery; the Smithsonian Zoo; New York City Parks; Lockheed Martin; the Mississippi River waterfront in New Orleans; and Trees Atlanta, where it reduced tree watering time and cost by nearly 90%.

Beyond Flexi®-Pave, the range includes KBI Flexi®-Drain (drainage management), Flexi®-Mulch (planting beds), Flexi®-Pothole (road repair), Flexi®-Twall (porous retaining walls), Flexi®-Safe (playground surfaces meeting ASTM fall height standards), and Flexi®-Roof (flat roof membrane protection). All products are LEED-qualified and ADA compliant.

Key Characteristics

• Full range of recycled-tire construction products: paving, drainage, mulch, retaining walls, roof protection, pothole repair, and playground surfaces
• Flagship product KBI Flexi®-Pave developed in 2001 — the world's first flexible porous paving system
• Supports loads up to 80,000 pounds without cracking
• Each square metre uses four recycled passenger tires
• LEED-qualified construction material meeting 6 of 7 LEED categories
• ADA compliant — safe for wheelchair and walker access
• Available for municipal, commercial, educational, and government applications
• Green Partnership Program available for self-installation by qualified entities

Environmental Benefits

• Diverts scrap tires from incineration, preventing CO2 release into the atmosphere
• Porous structure allows thousands of gallons per hour of groundwater recharge
• Filters dissolved nitrates and orthophosphates by up to 88%, improving water quality
• Reduces urban heat island effect through cooler surface temperatures
• Controls stormwater runoff and erosion at point of installation
• Reduces need for ongoing road and surface maintenance, lowering material consumption over time
• Contributes to circular economy by converting waste into durable infrastructure