Which description best defines intercoat adhesion after scuffing guidance updated?

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Intercoat adhesion is about how well a new coat bonds to the layer underneath. With the updated scuffing guidance, the focus is on ensuring a solid bond between coats, which often means providing a light scuff to create a micro-roughness that the next layer can grip onto. This is especially important on glossy surfaces or when the product requires it, because the roughened key helps both mechanical interlock and chemical bonding between layers, leading to durable, consistent film integrity. The other descriptions don’t address bonding between layers and how the surface preparation—like light scuffing—facilitates that bond. Color, fragrance, or mere dryness of the surface aren’t indicators of intercoat adhesion.