Mineral-Filled Polypropylene can replace semi-rigid PVC.
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Press Release Summary:
Modified so that they are essentially semi-rigid materials, Synres® 1000 Series mineral-filled polypropylene (PP) compounds exhibit thermal stability and resistance to environmental stress cracking. Characteristics include 35-65 Shore D Hardness, respective tensile strength yield and break ranges of 2,700-3,500 and 1,900-2,600 psi, and -76.0 to -32.0°F brittleness temperature. Compounds can be supplied in natural or pre-colored form in formulations tailored to customer requirements.
Original Press Release:
New Mineral-Filled Polypropylene Effectively Replaces Semi-Rigid PVC in a Range of Consumer and Industrial Components
Density lower than PVC Helps Offset the Higher Price of Synres® Modified PP from Teknor Apex, Making It Viable for Applications Where PVC Is No Longer an Option
PAWTUCKET, RHODE ISLAND, USA: A new mineral-filled polypropylene (PP) compound from Teknor Apex Company provides an effective alternative to semi-rigid PVC for those applications where PVC is no longer an option, it was announced today by Teknor Apex Company.
Modified so that they are essentially semi-rigid materials, Synres® 1000 Series compounds exhibit mechanical properties comparable to those of PVC in the 40 to 65 Shore D hardness range, plus superior low-temperature toughness and resistance to environmental stress cracking, noted Stephan Pronovost, business director for the Specialty Compounding Division. Because PP has greater thermal stability than PVC, the Synres compounds also provide the benefit of improved processability.
"Synres 1000 Series compounds cost more per pound than the widely used PVC workhorse materials they would replace, but part of the price difference is offset by a greater volume yield," said Pronovost. "Because their average density is lower than that of semi-rigid PVC materials, one pound of a Synres compound yields more finished product."
Typical applications for semi-rigid PVC for which the company recommends Synres 1000 Series compounds as alternatives include cove bases and moldings in building and construction, protective edges, and "U" and "J" profiles for diverse uses. Teknor Apex can supply the compounds in natural or pre-colored form in formulations tailored to customer requirements.
The accompanying table compares typical properties of semi-rigid PVC and Synres 1000 Series compounds over a range of hardnesses.
THE SPECIALTY COMPOUNDING DIVISION of Teknor Apex Company is a diversified custom and toll manufacturer of thermoplastic compounds and additive blends. It supplies proprietary compounds to plastics processors and serves as an outside source of production capacity, formulating experience, and process expertise for resin and additive suppliers. Headquartered in Pawtucket, Rhode Island, U.S.A., Teknor Specialty Compounding directly operates manufacturing capacity at two U.S. facilities and accesses the capacity of other Teknor Apex plastics businesses. Visit www.teknorapex.com.
READER INQUIRY INFORMATION: Address all mail inquiries to Teknor Apex, 505 Central Avenue, Pawtucket, RI 02861 U.S.A. Tel:1-401-725-8000. Fax: 1-401-726-0341. E-mail: tsc@teknorapex.com.
Robert J. Martino
Martino Communications Inc.
8 Main Street / P.O. Box 379
Hastings-on-Hudson, NY 10706 U.S.A.
Tel: 1-914-478-0754
Fax: 1-914-478-0959
Email: bob@martinocommunications.com
Visit www.martinocommunications.com
