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.
A informação aqui apresentada foi adquirida pela UL através do fabricante do material. A UL faz um esforço considerável para assegurar a veracidade desta informação. Todavia, a UL não assume nenhuma responsabilidade de valor pelas informações e o encoraja com bastante ênfase que ao final da seleção os dados sejam validados com o fornecedor do material.
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