What is this paste on the wires?

  • Thread starter kolleamm
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In summary, the conversation discusses a servo with a hard white paste that keeps the wires from moving and potentially touching each other. The paste appears to melt with heat and the group speculates that it could be either RTV or hot-melt glue. Some members suggest that for low voltage, any type of adhesive could be used. One member shares their experience using RTV to stabilize a radio antenna cable in a product.
  • #1
kolleamm
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TL;DR Summary
paste name on the wires
This is a servo, there is some sort of a hard white paste keep the 3 wires from moving around and accidentally touching each other. It appears to melt with heat. Does anyone know what it is? My guess is putty.

Thanks in advance
 

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  • #2
Looks like RTV. Hopefully they used electronics grade, since it looks like some metal on the wires is exposed.
 
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  • #3
It might also be hot-melt glue. That is a nice quick solution for an assembly line. For low voltage, they could use just about anything.
 
  • #4
DaveE said:
It might also be hot-melt glue. That is a nice quick solution for an assembly line. For low voltage, they could use just about anything.
+1

I have seen hot melt glue used in similar applications.
 
  • #5
berkeman said:
Looks like RTV. Hopefully they used electronics grade, since it looks like some metal on the wires is exposed.
Color and texture looks like that on the old CRT's.
Same stuff? ie RTV.
 
  • #6
256bits said:
Color and texture looks like that on the old CRT's.
Same stuff? ie RTV.
Looks like it to me. Here is an application where we use electronics grade RTV to stabilize a 2.4GHz radio antenna cable in a product (opened up for inspection)...

1563890216096.png
 
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1. What is the purpose of the paste on the wires?

The paste on the wires is typically used as a protective coating to prevent corrosion and enhance the longevity of the wires.

2. Is the paste conductive?

The paste on the wires is usually non-conductive to prevent any electrical interference or short circuits.

3. How does the paste adhere to the wires?

The paste is designed to adhere to the wires through a combination of chemical adhesion and physical bonding.

4. Can the paste be removed?

In most cases, the paste can be removed by using a specialized solvent or by gently scraping it off. However, it is not recommended to remove the paste unless necessary, as it serves an important purpose.

5. What happens if the paste is damaged or removed?

If the paste is damaged or removed, the wires may become more susceptible to corrosion and other forms of damage. This can potentially lead to malfunctions or failures in the electrical system.

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