With this system, a drop of adhesive is used to form a bridge between the component or wire,and the substrate. Exposure to UV light quickly tacks the component in place. Heat curing must be used to fully cure the adhesive. Useful applications for NCA 130 include wire tacking and bonding of head gimbal assemblies. NCA 130 is sensitive to the whole range of UV light from 320 to 400 nanometers with peak sensitivity around 365 nanometers.
Cure time is dependent on light intensity and thickness of adhesive layer.
The adhesive has been designed to be spot cured in small areas with hand held or desk top UV light sources that are safe and easy to use. Stronger light sources can also be used that will cure faster. Recommended maximum thicknesses for curing with UV light is 3 mils. In addition to the UV cure, NCA130 contains a latent heat catalyst that can cure areas that do not see the ultraviolet light. Recommended maximum thickness for heat curing is 10 mils.