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  2. DOWSIL™ 1-2620 Dispersion

DOWSIL™ 1-2620 Dispersion

One-part, clear, moisture RTV cure with mild heat acceleration possible, low viscosity, hard, slick finish with abrasion resistance, solvent borne, UL and Mil Spec, contains UV indicator.

用途:

  • Conformal Coating suitable for protective coating for rigid and flexible circuit boards and for PCB system Printed Wiring Board (PWB) applications, particularly those requiring toughness and abrasion resistance.

优势:

  • Cures to a tough, elastoplastic, resilient, abrasion resistant surface
  • One-part Solvent-borne resin coating
  • Room temperature cure, no ovens required
  • Optional mild heat acceleration (after solvent flash-off) can speed in-line processing
  • UV indicator allows for automated inspection
  • UL 94 V-0 flammability rating
  • UL 746E / UL746C Recognized
  • IPC-CC-830, Amendment 1 Approved
  • Mil-I-46058C, Amendment 7 Approved
  • Good adhesion allows use with many low-solids (no clean) and no-lead solders

性能

这些数值为典型性能，并且不用于在规格制定过程中使用。

典型性能

  • 介电常数 100 Hz 是 否 2.69
  • 介电常数 100 kHz 是 否 2.68
  • 介电强度 是 否 550 volts per mil v/mil
  • 体积电阻率 是 否 4.6e+013 Ω・cm
  • 保质期 是 否 1080 Days
  • 动力粘度 是 否 150 Centipoise
  • 可流动 是 否 true
  • 固化特点 是 否 延长工作时间 > 10 分钟
  • 室温固化-小时数 是 否 > 1 Hours
  • 抵御种类 是 否 耐磨损
  • 损耗因子 100 Hz 是 否 0.002
  • 损耗因子 100 kHz 是 否 < 0.0003
  • 无底涂剂的粘合力 是 否 无需底涂
  • 比重 @ 25C 是 否 1.11
  • 温度范围 是 否 -45 to 200 °C
  • 溶剂型 是 否 true
  • 点胶施工方式 是 否 快速，流动性非常高 < 350 cps
  • 特性 是 否 IPC-CC-830B 认可, MIL 规格, UL 认可
  • 相对湿度50%时的表干时间 是 否 5 Minutes
  • 硬度 是 否 耐磨性=80A
  • 组分 是 否 单组份
  • 颜色 是 否 清除
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