Date: 29/01/2010
Master Bondīs UV curing conformal coating provides high protection for PCBs
Master Bond has extended its protective conformal coatings line with the addition of UV10LV, a new high non-conductive, UV curing conformal coating that is designed to restrain the impact of moisture, dust, chemicals, and temperature extremes on electronic circuitry and components.
Master Bond UV10LV offers a complete line of conformal coatings that are easy to apply and provide high protection for printed circuitry. These conformal coatings include fast, one part, UV curing formulations, one and two part epoxies, one and two part silicones and a unique, cost effective latex system. These protective coatings for circuit boards can be applied by spraying, dipping, flow coating and other conventional processing techniques.
The PCB protection coating achieves bond strength equal or exceeded to those obtained from conventional epoxy resins. The fast curing mechanism of UV10LV is triggered by any convenient source of UV light such as medium pressure mercury vapor lamps. Unlike other UV systems, the UV10LV protective conformal coating can be cured in a wide range of section thicknesses. It does not have to be fully cured by the light source because polymerization will continue after initial exposure.
UV10LV is not oxygen inhibited and it does not require an inert atmosphere. Master Bondīs PCB conformal coating, UV10LV withstands exposure to temperatures up to 150°C and resists water and most chemicals. It has a refractive index of 1.55 and a volume resistivity of 1014 ohm/cm. No solvents or other volatiles are released during the curing process. Better fatigue resistance allows the UV curing adhesive to perform well under stress even in adverse environments. It has a shelf life of 6 months at 20oC in original unopened containers.
For more details visit www.masterbond.com