U.V. resistant zinc coated PVC or related plastic pipe
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United States of America Patent
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Dec 25, 1990
Grant Date -
N/A
app pub date -
Sep 29, 1989
filing date -
Sep 29, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A conduit and an integrated system for utilizing same, such as a foam control spray system for a sewage treatment facility, where said conduit is exposed to a hostile environment, such as solar ultraviolet (U.V.) radiation. The conduit and transmission components of such system comprise tubular members consisting of a solar U.V. degradable plastic, such as polyvinylchloride (PVC), having a preferred outer layer of metallic zinc diffusion bonded thereto, such as by spray arc metallizing the zinc onto the plastic surface, whereby the zinc prevents deterioration or breakdown of the plastic from solar U.V. radiation.
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