BR-640D is a polybutadiene (PBD) urethane acrylate with a functionality of two. Designed to meet rigorous electronic applications, BR-640D has many desirable properties typical to PBD resins, combined with radiation curability. In applications requiring thermal cycling resistance, BR-640D withstands the extremes of temperature typical of such tests, without undue degradation of properties. Excellent hydrophobic properties were exhibited where 0.012 and 0.037% water was absorbed by cured coating when submerged in water for 24 hours. In addition to the adhesion properties listed in the table below, BR-640D showed excellent adhesion to ABS, acrylic, nylon-6, PVC, and PS.
Bomar specializes in the synthesis, formulation, and manufacture of advanced performance oligomers and materials for energy (UV/EB), light, and other free-radical cure applications worldwide.
La información presentada aquí fue adquirida por UL desde el productor del material. UL hace un esfuerzo considerable para asegurar la exactitud de estos datos. Sin embargo, UL no asume responsabilidad por los valores de los datos y alienta firmemente a que tras la selección final del material, los puntos de los datos sean validados con el proveedor de la materia
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