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DOWSIL™ 3-1965 Conformal Coating

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单组分、透明、可以通过轻微加热加快湿气 RTV 固化、低粘度、柔软、应力消除、含有 UV 指示剂。

用途:

Elastomeric conformal coating
Suitable for lighting, industrial and automotive industries requiring various reliability standards as a coating for rigid and flexible circuit boards, electronic printed wiring boards (PWB), sensitive components and fine pitched designs.

优势:

No added solvents
Room temperature cure, no ovens required
Mild heat acceleration can speed in-line processing
Good adhesion to many substrates
Allows use with many low-solids no-lead solder
Soft coating improves reliability against stress
Low viscosity enhances flow and fill in narrow gaps and spaces
UV indicator allows for automated inspection
UL 94 V-0 flammability rating
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

介电强度 是否 425 volts per mil v/mil
介电强度（kV/mm） 是否 17 kV/mm
体积电阻率 是否 8.7e+014 Ω・cm
保质期 是否 360 Days
固化特点 是否快速室温不黏时间 < 10 分钟
损耗因子 100 Hz 是否 0.001
损耗因子 100 kHz 是否 < 0.0002
无溶剂 是否 true
比重是否 0.99
温度稳定性 是否弱/低, 强/高
温度范围 是否 -45 to 200 °C
溶剂类型 是否无溶剂
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
硬度是否应力消除 15A-40A
硬度-Shore A 是否 33 Shore A
粘度是否 115 mPa.s
颜色是否清除