one、 Overview：

neutralWelding aidagentF-threethree0^#yes一种由抗氧化agent烷基咪唑、优质松香树脂和neutral溶agent等配制而成of非活性松香Welding aidagent。适用于单面印刷电路板预涂和电子元件焊接，能长期保持洁净铜箔具有良好of焊接性能、防止铜箔氧化。焊接The solid is sublimated into gas phase after weldingthe residueextremelyLess, does not affect the electrical performance; Therefore, it is not necessary to clean after welding.

neutralWelding aidagentF-threethree0^#不含如苯、镉、六价铬、卤素化合物等对环境有害物质。毒性低，对操作员安全，对滚涂胶rollerof溶涨作用extremely低。

2、 Technical indicators：

Appearance: light yellow viscous liquid

Density: 0.eighteight—0.nineone （25℃）

Viscosity: 2eight—three0CPS（25℃）

Solid content: thirty-five±one% （W/V）

Copper foil protection period: ≥three months

Welding resistance: ≥one0Sec（270℃）

three、 Method of use：

Direct roll coating or brush coating. staywithWhen density is the reference index,0.eighteight—0.ninethreeA uniform and protective coating can usually be obtained by direct roll coating within the density range of.When the density is high, the gloss of the coating is good. Too high may make the coating too thick, waste and affect the electrical performance after welding.

在使用Time由于溶agent挥发会使Density andViscosity increases, recommendedD-three25^#稀释agent稀释。D-three25^#稀释agentof使用量视环境温度、湿度，所要求涂层of厚度、光ZeDegree and operating conditions. GenerallyF-threethree0^#ofone.5-2x.

D-three25^#稀释agentyesF-threethree0^#of成份之一，密度为0.eight0—0.eightone。其成份为with异丙醇为主of低碳醇类。

4、 Packaging and storage：

packing:20 liters

Storage: store in a cool and ventilated place, away from the heat source. Class I inflammable product（three.one类）。

Period of validity: six months.

five、matters needing attention:

新配ofF-threethree0^#Welding aidagent颜色很浅，Welding aidagent覆盖在board上呈透明状。

Usually usedwith调节Stainless steel roller pressure、Welding aidagent浓度（用密度）来控制滚涂of厚度，使得胶辘上有一层均匀且厚度适合ofWelding aidagent转移到板面上。

Stainless steel roller pressureSmall，胶辘上ofWelding aidagent就many，with可见到有一连续性of薄层均匀覆盖为宜。

Welding aidagent密度高，胶辘上ofWelding aidagent就many，密度过高会使得Welding aidagent流动性变差（即粘度太大），影响Welding aidagentof均匀分布。

F-threethree0^#Welding aidagent工作液最佳of密度范围yes0.nine0-0.nineone。

stainless steelroller, glueroller上粘有异物或磨损，会导致涂布不均匀，板面上部分无Welding aidagent或其厚薄不均，起不到保护板上铜面of作用。

因此日常工作必须包含检查stainless steel辘, glue辘，调整其压力with及用稀释agentD-three25^#调节Welding aidagentof密度在合适of范围内。

F-threethree0^#Welding aidagent与空气接触会缓慢氧化，作tradeTimeboard亦会带入杂物（如冲压产生of粉尘），因此在工作one00SmallTime后或颜色变为棕褐色TimeDiscard the old liquid and clean itManage storage containers后重新加入新ofF-threethree0^#Welding aidagent。