What is the recommended cure profile for light curable products?
Ablestik historically has not recommended a specific dosage to customers since dosage implies a specific cure time at a specific intensity. However, the following can be used as a guideline: A minimum dosage of 3,000 to 5000 mJ/cm2 (with a minimum intensity of 300 mW/ cm2) of 365 nm UV light and a minimum dosage of 3,000 mJ/cm² (with a minimum intensity of 100-110 mW/ cm2) of 475 nm blue-visible light. To optimize a UV/light cure process, Ablestik recommends that a stepladder experiment be run comparing cure time to change in Tg or adhesion strength while maintaining a constant intensity. It is important that the intensity at the bondline is held constant at or above the recommended minimum intensity value reported by Ablestik. The goal of the experiment is to optimize the exposure time based on the stabilization of Tg or adhesion strength.
