UV Resin is here.This is a clear, fast curing, hard resin in a 100 gram bottle. This acrylic resin gets cured under Ultraviolet (uv) light or direct sunlight. It is perfect to create a water or other liquid effect. Works perfectly with our mermaid sand. Non-yellowing. Curing time under a UV-LED 6 to 9w lamp is 30 to 90 seconds. Under a non-LED UV lamp at 36w will cure in 2 to 4 minutes. Sunlight may take a little longer depending how direct the sunlight is or how cloudy it is.