Protection of substrates against aquatic fouling
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United States of America Patent
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Mar 9, 1993
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N/A
app pub date -
Sep 13, 1991
filing date -
Sep 13, 1991
priority date (Note) -
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Abstract
A process for protecting a rigid substrate against aquatic fouling comprises coating the substrate with an elastomeric undercoat as a 200 to 1500 micron thick layer and with a top coat of a room temperature vulcanisable silicone rubber. The elastomeric undercoat is generally harder than the room temperature vulcanisable silicone rubber foul resistant top coat and preferably has a Shore A hardness of 60 to 90 and an extensibility of 200 to 800%. The abrasion and tear resistance of the silicone rubber foul resistant layer is markedly increased by the use of the elastomeric undercoat.
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