亚洲女同一区二区,少妇被躁爽到高潮无码人狍大战,中文区中文字幕免费看,色窝窝无码一区二区三区,加勒比hezyo黑人专区,成人欧美日韩一区二区三区,国内精品人妻无码久久久影院91,下面一进一出好爽视频,日韩视频中文字幕精品偷拍,国产精品三级在线观看无码

  • <ul id="cmwym"></ul>
  • <strike id="cmwym"><menu id="cmwym"></menu></strike>
  • Menu
    icon
    Online
    icon
    Telephone

    What is the difference between epoxy potting and silicone potting?

    2019-09-02

    Epoxy potting and silicone potting are both electronic potting, but the hardness and use of the two pottings are different.

    Epoxy potting compound is passed the EU ROHS specified standard, and the hardness of the cured product is high. It can be cured at room temperature or by heating. It is a room temperature curing type two-component epoxy resin potting material. It has excellent electrical properties, high surface gloss and easy operation. Mainly used for potting of small and medium-sized electronic components, such as car, motorcycle igniter, LED drive power, sensors, capacitors, triggers, LED waterproof lights, circuit board confidentiality, insulation, moisture-proof (water) potting.

    Silicone potting glue can be divided into many types. The properties of different types of silicone potting glues are also very different, such as temperature resistance, water resistance, insulation properties, optical properties and adhesion to different materials. At the same time, external fillers can be added to add some characteristic properties, such as heat conduction and conduction. Silicone potting compound has poor mechanical strength. If a component fails, just open the potting compound and replace it with a new one. It can be used continuously. It can be opened for easy maintenance. Two-component silicone encapsulants are common and widely used. Two-component silicone encapsulants can be classified into condensation type and addition potting compound. Silicone potting compound is used for waterproofing, moisture-proof, gas-proof coating, casting and potting protection of precision electronic components, solar energy, backlights and electrical modules.

    In terms of hardness after curing, silicone potting glue is softer than epoxy potting glue. The hardness and color of the silicone potting compound can be adjusted according to the customer's preference and product characteristics, and the conventional color is transparent or translucent.

    環(huán)氧樹脂和有機(jī)硅灌封膠區(qū)別

    大肉大捧一进一出好爽视频| 又大又粗又爽a级毛片免费看| 久无码久无码av无码| 少妇一边呻吟一边说使劲视频| 久久久久99精品成人片直播| 性aa无码天堂| 精品国产三级a∨在线| 精品久久久久久无码专区| 国产免费av片在线看| www亚洲精品少妇裸乳一区二区| 日韩亚洲欧美中文高清在线| 亚洲av中文无码乱人伦在线咪咕| 国产av无码专区亚洲av毛片搜| 狂野欧美激情性xxxx| 无码精品日韩中文字幕| 欧美性xxxxx极品娇小| 亚洲日韩一区二区三区| 丰满少妇被猛烈进入| 欧美午夜精品久久久久免费视| 国产精品国产精品国产专区不卡| 亚洲国产中文在线二区三区免| 久久综合精品国产一区二区三区无码 | 女女女女bbbbbb毛片在线| 精品人妻va出轨中文字幕| 熟女熟妇伦av网站| 西西人体444www大胆无码视频| 国产精品一国产精品| 夜夜爽一区二区三区精品| 国产成年人视频| 国产精品亚洲欧美一区麻豆| 亚洲乱码伦av| 亚洲91在线成人综合网站| 久久精品水蜜桃AV综合天堂| 亚洲人成网站999久久久综合| 婷婷色国产精品视频一区| h无码精品3d动漫在线观看| 啪啪无码人妻丰满熟妇| 国产精品亚洲а∨无码播放不卡| 亚洲国产成人一区二区三区 | 色狠狠一区二区三区香蕉| 性欧美长视频免费观看不卡|