Three new polyethylene resins are designed for hose and tubing used for microirrigation in landscaping and agriculture. Dow Chemical's North American Plastics Business, Houston, developed the new Fingerprint PE resins to increase the performance of micro-irrigation systems and help reduce the amount of water lost to leakage. Further, the company has included a trace element in these resins that acts as a "fi ngerprint" marker, making it possible for manufacturers of micro-irrigation equipment to verify their identity as Dow PE resins in tube and drip tape years after installation. Among the new resins, DFDA-7510 NT is an LLDPE with reportedly outstanding ESCR and burst strength, as well as good extrusion characteristics. MDPE 7520 is a bimodal resin said to have outstanding resistance to slow crack growth and rapid crack propagation. DFDC-7525 NT is an MDPE said to have high tensile strength and elongation, outstanding toughness and puncture resistance, and excellent burst strength. Tel: (713) 978-2971 . www.dow.com
Dow Chemical Company
Specialty Plastics & Elastomer
PO Box 1206 Midland, MI 48642
Phone (989) 832-1426 Fax (989) 832-1465
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