Corrosion-resistant coating composition containing hollow microballoons
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United States of America Patent
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Dec 22, 1981
Grant Date -
N/A
app pub date -
Aug 8, 1980
filing date -
Aug 8, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A fluoroelastomer-hollow glass microsphere coating has been found to provide new and unexpected corrosion resistance to metal surfaces for protection against severely corrosive environments. The coating comprises a fluorocarbon elastomer and 3-50% by volume of hollow glass microspheres or microballoons having a size in the range of about 2-300 microns, preferably 20-200 microns. The hollow glass microspheres or microballoons substantially increases the corrosion resistance of a fluoroelastomeric liquid composition, yielding new and unexpected thermal and chemical resistance, particularly when the coating composition is applied in two or more layers.
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