World first with PP 125

(Rotterdam, The Netherlands) claims to be the first to offer ISO–classified PP 125 polypropylene to extruders of water pipe. Under ISO 12162, this means pipe extruded from the material can successfully resist internal pressure with water at 200°C for 50 years. For processors, this new rating means a processor can reduce the thickness of a pipe’s wall but still achieve the same pressure rating as previously offered, or maintain the existing pipe wall thickness and put more pressure through it. PP 125 would compete against polyethylene, cross-linked polyethylene, and established materials such as metal pipe.

The PE 100+Association lists 17 grades of polyethylene that pass its tests for PE 100 certification, including two grades from LyondellBasell. In 2000, Samsung General Chemicals (now SamsungTotal) earned recognition for development of a PE 112 material, but to MPW’s knowledge marketing of that material has met resistance from processors who see little benefit in making the change to this material.

Pierre Herben, LyondellBasell’s VP for product and application development, says, “Following our success in attaining this first-time PP 125 classification, our R&D department will enable producers to develop pipe with longer life spans and reduced material consumption due to thinner pipe walls.” —[email protected]