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There is no indication that a thin layer would be much protection from UV-B or more energetic radiation from the Sun. It does absorb / emit quite broadly in the UV-A range.

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14y ago
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5mo ago

Yes, polyurethane coatings can offer some protection against UV rays from the sun. However, over time, prolonged exposure to sunlight can still cause the polyurethane to break down and degrade, resulting in potential discoloration or peeling. It is recommended to use a polyurethane with UV inhibitors for better protection.

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Q: Does polyurethane protect against uv rays from the sun?
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