Mavic Pro thermal paste on logic board components.

[Dean88]

My Mavic pro landed in the water, so now I have disassembled the logic board and removed aluminium shields, under the shields there is blue thermal paste for protecting the IC chips.
But I also see the thermal paste on other components beside the IC chips, does this short the board and damage the components?

 

[Drone Master]

My Mavic pro landed in the water, so now I have disassembled the logic board and removed aluminium shields, under the shields there is blue thermal paste for protecting the IC chips.
But I also see the thermal paste on other components beside the IC chips, does this short the board and damage the components? View attachment 137641

No, the thermal paste is only heat conductive. Not electrically conductive. Its primary function is only to transfer heat to the cooling heat sinks. It should be reapplied when re assembling to insure proper cooling.

 

[Starz]

Reading material.

Is Thermal Paste Electrically Conductive? Know the Truth

If you want to know about the conductivity of a thermal compound, then check this post on whether the thermal paste is electrically conductive or not.

bestthermalpaste.com

 

[eEridani]

That article is hilarious. The guy says "silver ice" paste is conductive then says carbon paste isn't. I guess he's never heard of carbon-arc lamps. And here's Artic's description of it's silver paste conductivity (they essentially say it has a dielectric constant that is higher than air, which is true of virtually all thermal pastes):

Not Electrically Conductive:
Arctic Silver 5 was formulated to conduct heat, not electricity.
(While much safer than electrically conductive silver and copper greases, Arctic Silver 5 should be kept away from electrical traces, pins, and leads. While it is not electrically conductive, the compound is very slightly capacitive and could potentially cause problems if it bridges two close-proximity electrical paths.)

 

[Starz]

I did chuckle a bit myself. The word “conductive” in this instance has two meanings. Thermal and electric. Takes a little to dig through and get the information needed.

 

[lovesheeps]

No, the thermal paste is only heat conductive. Not electrically conductive. Its primary function is only to transfer heat to the cooling heat sinks. It should be reapplied when re assembling to insure proper cooling.

Can you recommend a thermal compound that can be reapplied?

 

[Starz]

One of many available products.

Amazon.com

 

[lovesheeps]

One of many available products.

Amazon.com

Wow thank you so much. I bought it right away!!!

Here's what GPT said about this compound.


Review of Super Lube 98003 Silicone Heat Sink Compound





Super Lube 98003 Silicone Heat Sink Compound is a non-curing, silicone-based thermal compound designed for efficient heat transfer. Below are some key features and specifications:





1. Non-Curing: This compound doesn’t harden, making it reliable for long-term use.


2. Temperature Range: It operates between -40°F to 500°F (-40°C to 260°C), making it suitable for high-temperature environments .


3. Thermal Conductivity: It has a thermal conductivity of 0.55 W/m·K, helping dissipate heat effectively from electronics .


4. Viscosity Stability: With a viscosity range of 250-310 dmn, it maintains consistent performance even under heat .


5. Applications: Commonly used in electronics, semiconductors, power devices, and automotive electrical systems such as alternators and regulators .


6. Water Resistance: It resists water washout, making it suitable for humid environments .


7. Non-Conductive: Safe for use on sensitive electronic components due to its non-electrically conductive nature.


8. Low Evaporation: With an evaporation rate of less than 0.1%, it offers long-term reliability without significant degradation .


9. Durability: The compound doesn’t dry out or melt, providing stable performance over long periods .





This product is ideal for applications requiring long-lasting thermal management, especially in electronics and power equipment where maintaining temperature control is critical.





Feel free to use this for your post!