今日有位同事向我咨询乐泰348胶水，初听上去以为是乐泰传统工业胶水，但同事很坚定的说是用于SMT贴片的红胶，我印象中乐泰的SMT贴片红胶都是四位数加字母为型号的，常见的如3609、3611、3619等等。后来翻墙下载了一份LOCTITE 348的TDS资料查阅了一下，果然是用于SMT的贴片胶水，以前还真没留意过，大概看了一下，此产品资料是2008年10月份推出的，与乐泰以前类似的胶水差别不大，里面有提到一个指标“Fluorescence：Positive under UV light”，用google translate翻译了一下：“荧光：在紫外光下正”，这个好像传统红胶没有提到的，估计也是有特殊的用途吧！

下面摘录部分乐泰348的技术参数资料，大家也可以下载附件查看之：
PRODUCT DEION
LOCTITE® 348™ provides the following product characteristics:
Technology Epoxy
Chemical Type Epoxy
Appearance (uncured) Red high viscosity gelLMS
Components One component – requires no mixing
Fluorescence Positive under UV light
Cure Heat cure
Application Surface mount adhesive
Key Substrates SMD components to PCB
Other Application Areas Small parts bonding
Dispense Method Syringe
Dispense Speed Medium 15,000 -25,000 dots/h
Wet Strength High

LOCTITE® 348™ is designed for the bonding of surface mounted devices to printed circuit boards prior to wave soldering. Particularly suited for applications where medium to high dispense speeds, high dot profile, high wet strength and good electrical characteristics are required.

附件下载：

  loctite 348 TDS (65.5 KB, 6 次)