Urban Graffiti Metallic Gel Polish requires curing in a UV/LED lamp but also requires that you to allow sufficient time for the product to air dry completely. Attempting to apply a Top Coat over partially cured Metallic will dull and mottle the appearance.
To apply over gel polish on natural nails: 1. Apply one layer of Urban Graffiti Base Coat and cure. 2. Apply one layer of Urban Graffiti Top Coat and cure. 3. Apply Urban Graffiti Metallic Coat and cure in a UV or LED lamp for 120 seconds then allow to air dry until completely dry. 4. Apply Top Coat to over to encase the Metallic and cure immediately in the lamp