What is high purity isopropyl alchohol? 70% enough?

[Parmenides]

The artic silver 5 instructions website says to use high purity isopropyl alcohol for cleaning. I have 70% sitting in my cabinent. Is this good to use, or should I be using something more pure?

[trust_no1]

high purity would be something >90%. You should be able to get it at a pharmacy.

[mikeblas]

70% will be fine. There's lots of people who say you need high purity, but little is written about why you really need it. No need for a special trip to the store.

[Yaden]

I had no problem finding 91% at Target, so I saw no reason to go with anything less. Just make sure it is fully dry. ;)

[Decker87]

I just buy high purity to get a better deal. 91% is easily found at wal-mart for around a dollar. Cheap cheap stuff but works wonders.

[quadnad]

70% should be fine, it's just that 90+ is better in terms of being a solvent and it'll dry more quickly, but you shouldn't have any trouble using 70%. Just make sure it's dry!

[Jon855]

I didn't have any trouble using the 60% ones, just be sure that it's dry beforehand doing anything else after u use the solution.

[Parmenides]

Thanks, how long does it take to dry? Do you ussually wait until you see no more moisture?

[quadnad]

Thanks, how long does it take to dry? Do you ussually wait until you see no more moisture?

It's visible when there is still alcohol on there. Just use a lint free cloth to wipe it and it should evaporate in a few seconds.

[amdmadman]

70% IPA should be all gone in less then 5 minutes. 100% is gone in under 60 seconds with a small amount

[Alchemic]

Just use brake cleaner,.

[CRXican]

My alcohol is 99.6% it's awesome. LKG Industries

Got it at a small, local electronics store.

[deeznuts]

Just use brake cleaner,.

Lol I actually use Gunk, it's the only thing that'll get the pads off. Thermal grease and arctic silver i won't, but remember those hard bazooka joe gum pads that use to come on amd heatsinks, the tiny ones? Only thing I can use to get those off were Gunk engine cleaner haha.

[takeabao]

Everclear, anyone?

[wee96]

Everclear, anyone?

That stuff knocked me on my ass when I was younger haha, talk about strong.