What is the tacky surface left on nails after a UV gel has cured called?

The correct term for the tacky surface left on nails after a UV gel has cured is known as the "inhibition layer." This layer forms as a result of the gel not fully curing at its surface, which happens because the UV light can only penetrate so deeply into the product. The outermost layer of the gel remains slightly uncured and retains a sticky feel.

This inhibition layer is significant because it allows for proper adhesion of additional layers, such as a topcoat or subsequent color application. It’s essential for nail technicians to be aware of this layer to ensure the integrity and longevity of the overall nail enhancement, as removing it improperly or failing to recognize it can lead to peeling or lifting of the gel.

Other terms like adhesion residue, curing film, or surface tack do not accurately define the specific phenomenon occurring with UV gel nails. They may suggest related concepts, but they do not capture the precise nature of the inhibition layer that is crucial to the nail enhancement process.