Hello, I'm an expert in the field of electronics and materials science. I'm here to provide you with a comprehensive answer to your question about whether super glue can be used as a substitute for solder.

**Super Glue vs. Solder: A Detailed Comparison**

Introduction

Soldering is a well-established method for creating electrical and mechanical connections between components in electronic assemblies. It involves melting a metal alloy (solder) and using it to bond two metal surfaces together. However, there may be situations where soldering is not feasible or practical. This is where alternatives like super glue come into consideration.

Properties of Super Glue

Super glue, also known as cyanoacrylate, is a type of adhesive that is known for its rapid bonding capabilities. It's commonly used in a variety of applications, from household repairs to certain types of industrial assembly. However, when it comes to electronics, there are several factors to consider:


1. Electrical Conductivity: As others have said, traditional super glue is not conductive. This is a critical property for any material used in electronic connections. Non-conductive adhesives cannot carry electrical current, which is a fundamental requirement for solder.


2. Heat Resistance: Soldering typically involves high temperatures that can melt the solder alloy. Super glue, while it can bond quickly at room temperature, may not withstand the heat that soldering requires.


3. Mechanical Strength: Super glue can provide strong mechanical bonds, but these are not always as reliable or consistent as the metallurgical bond created by soldering.


4. Reliability and Durability: Soldered joints are generally more reliable and durable over time, especially in environments with thermal cycling or mechanical stress.

Conductive Adhesive as an Alternative

Given the limitations of super glue, there is an alternative known as conductive adhesive. Conductive adhesives are engineered to provide both electrical conductivity and the adhesive properties of glue. They are used when normal soldering is not practical, such as in temperature-sensitive applications or when components are too small or delicate for traditional soldering techniques.

**When to Use Super Glue or Conductive Adhesive**


1. Non-critical Applications: If the electronic connection does not need to be highly conductive or durable, super glue might suffice for a temporary or non-critical fix.


2. Prototyping: In the early stages of product development, super glue can be used for quick assembly and disassembly of components.


3. Repairs: For certain types of repairs, especially those not involving critical electrical pathways, super glue can be a quick and easy solution.


4. Conductive Adhesive for Electronics: When a more permanent and conductive solution is needed, conductive adhesive is the preferred choice. It can be very useful if soldering cannot be done normally due to the reasons mentioned earlier.

Conclusion

While super glue can be a versatile adhesive, it is not a direct substitute for solder in most electronic applications due to its non-conductive nature and other limitations. However, in cases where soldering is not an option, conductive adhesive offers a viable alternative for creating electrically conductive bonds. It's important to choose the right material for the job, considering the specific requirements of the application in terms of conductivity, heat resistance, mechanical strength, and long-term reliability.

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As others have said super glue is not conductive. You can buy conductive adhesive which is used when normal soldering is not practical. ... It is an option when a normal solder job can't be done. It is not as good as solder for many reasons but it can be very useful if soldering can not be done normally.Mar 28, 2015read more >>