Optically active coatings react to ultraviolet light. (Surface Engineering).

From: Advanced Materials & Processes | Date: January 1, 2003 | Copyright information

Optically active coating systems (OACS) that react to ultraviolet light by glowing have been developed by NCP Coatings Inc., Niles, Mich. To make the coatings reactive, an optically active material is added to the formulation. The OACS coating is then applied on the surface, and the final coating without the additive is applied on top.

Under ultraviolet light, any paint cracking, crazing imperfections, or total failures appear as brighter areas. This shows that the protective coating has failed and the OACS undercoating is exposed from undemeath. When the cracks expose the ...

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