MULTI-LAYER COATING SYSTEM FOR POLYCARBONATE SUBSTRATES
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United States of America
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Feb 20, 2025
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Dec 20, 2021
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Dec 20, 2021
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Abstract
The disclosure relates to a multi-layer coating system on a polycarbonate substrate, comprising: a primer layer applied directly to the substrate, wherein the primer layer is obtained from a primer coating composition, which comprises at least one polyaspartic acid ester and at least one polyisocyanate crosslinker, which primer coating composition does not comprise epoxy-functional alkoxysilanes and is free from compounds with reactive OH groups, and at least one organic topcoat layer overlying the primer layer, which organic topcoat layer is obtained from a coating composition different from the primer composition.
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