PRO-RING Advantages
- PRO-RING™ is made from expanded polypropylene (EPP), a high strength, energy absorbing plastic
- PRO-RING™ meets or exceeds AASHTO HS-25 load requirements.
- PRO-RING™ meets or exceeds material properties per ASTM D4189-13
- PRO-RING™ meets or exceeds the requirements of ASTM C1244 (vacuum test)
- PRO-RING™ meets or exceeds the requirements of ASTM C969 (exfiltration test)
- PRO-RING™ has excellent chemical resistance
- PRO-RING™ has excellent UV resistance
- PRO-RING™ is not damaged or compromised when in direct contact to 285º F HMA
- PRO-RING™ is approximately 1/20th the weight of concrete grade rings, making it very easy to handle and install
- PRO-RING™ minimizes the risk of injury due to its light weight
- PRO-RING™ does not require any special or heavy equipment for handling, installation or shipping
- PRO-RING™ will not fracture during transportation or be damaged if dropped
- PRO-RING™ is easily drilled in the field for bolt down or anchoring applications
- PRO-RING™ has no stacking height limitations
- PRO-RING™ is available in a variety of round, square and rectangular shapes
- PRO-RING™ is available in a variety of thicknesses from ¾” to 6” as well as tapered rings
- PRO-RING™ has a 100 year design life and is backed by a 25 year material warranty