SYMPOSIA PAPER Published: 01 January 1993

Effect of Oxidizing Environments on Long-Term Performance of Rotationally Molded XLPE Storage Tanks


Caution should be used when evaluating the long-term storage capability of polymeric materials in direct contact with chemically active solutions. Degradation and cracking of rotomolded, cross linked polyethylene (XLPE) storage tanks that have been used for long-term storage of potentially strong oxidizing liquids have been analyzed. Fractographic, mechanical and chemical evidence indicates that under certain conditions XLPE can be severely oxidized and degraded when concentrated industrial bleach or oxidizing acids decompose or react with the XLPE.

Author Information

Wachob, HF
Failure Analysis Associates, Inc., Menlo Park, CA
McGarry, FJ
MIT, Cambridge, MA
Abell, GH
Poly Processing Company, Monroe, LA
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Developed by Committee: D30
Pages: 132–144
DOI: 10.1520/STP14903S
ISBN-EB: 978-0-8031-5249-6
ISBN-13: 978-0-8031-1866-9