Ethyl alcohol performs similarly to isopropyl alcohol for removing thermal compounds.
Ethyl alcohol performs similarly to isopropyl alcohol for removing thermal compounds.
If isopropyl alcohol isn't available, a nearly dry paper towel works. Ethanol isn't recommended as it could leave behind a film.
Sure, avoid using ethyl alcohol—it could easily damage your computer. From what I recall in chemistry, it evaporates more slowly than isopropyl, so check local stores like Walgreens, CVS, or even a grocery store. Wallmart and Target likely won't carry it. Also, 100% isopropyl tends to dry much quicker than 70%.
The issue with ethyl alcohol lies more in what remains after processing than in its volatility. Ethanol is what we consume, but the byproducts—ketones and other impurities—stay behind. It’s nearly impossible to keep ethanol highly pure without using specialized chemicals, as it draws moisture from the air. This leaves a residue that can be harmful if present on sensitive equipment like a CPU.
Many false claims appeared in that discussion. Ethanol is fine when using concentrated form (like rubbing alcohol) and not vodka or similar. It’s a bit less volatile than isopropyl alcohol, but the gap is negligible. Moisten a non-fibrous cloth—coffee filters are ideal, paper towels work well—and wipe it down. By then it should be fully evaporated. For extra security, let it sit 2-3 minutes before installing the new heatsink.
It's roughly the best we can do with ethanol. It should work fine. I think they're not intended for drinking—just the fuel component. (No added sugars or anything else)