Is it safe to use ethanol instead of isopropyl alcohol for cleaning thermal paste?

March 27, 2026 5 answers
Asked by TechieNerd42
I recently bought a new CPU cooler and need to clean off the old thermal paste. Unfortunately, I don't have any isopropyl alcohol on hand, but I do have 96% ethanol alcohol. Is it safe and effective to use ethanol for this purpose?

Answers

LabWhisperer22
Actually, my wife works in a lab, and we've always used ethanol to clean off stubborn thermal paste. It does the job well unless the paste is really old and tough. Most of the time, just a sheet of kitchen roll does the trick!
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CleaningGuru99
Be cautious! While ethanol can work, it might leave some residue behind after cleaning. I've had my own mishaps with solvents and plastic, so it's wise to be careful. If you find yourself needing to clean often, consider getting some alcohol wipes for a safer bet.
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QualityChecker88
If you're using high-quality ethanol, it should be fine, but if it's low-quality, it might leave some junk behind. Isopropyl is easier to find and is often just alcohol and distilled water.
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ChemicalChick77
You can use ethanol, but keep in mind isopropyl alcohol is often preferred since it tends to leave no residue. Ethanol might have colorants or additives that could affect things. I usually buy a few bottles online so I always have some ready!
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EthanolExpert45
I would only recommend using it if it's a high-proof product like Everclear. Otherwise, you might want to stick with something more reliable.
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