MATERIALS: As conformal coatings are becoming more essential to electronic assemblies, Master Bond broadens their protective conformal coatingsline with the addition of UV10LV. A clear, highly non-conductive, UV curing conformal coating, it is designed to restrain the impact of moisture, dust, chemicals and temperature extremes on electronic circuitry and components. Its high resilience bonds will not deteriorate even when exposed to adverse environmental conditions including severe heat and moisture. Master Bond UV10LV is a low viscosity UV cure adhesive compound offering an exceptionally fast cure upon exposure to UV light at room temperature. Excellent adhesion properties are obtained with metals, ceramics, glass, paper, many plastic and elastomers. 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 therefore does not require an inert atmosphere. Master Bond’s PCB conformal coating, UV10LV withstands exposure to temperatures up to 300F 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. Excellent fatigue resistance allows the UV curing adhesive to perform well under stress even in adverse environments. It has a shelf life of six months at 70F in original unopened containers.
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