Isopropyl alcohol

22
Posted 8th Jun
Hi all, does anyone know where I can get some decent priced isopropyl alcohol from? I need it to wipe away thermal paste from a couple of devices (2 Laptops, 2 PCS) as they are long due a change (high thermals).

Everywhere I've checked seems to be double the amount than normal. 1 litre is around £15+ on Amazon.

Not fussed if its 99.99% or 70% as I read online that either will do.

I usually wouldn't mind waiting a couple of weeks for prices to drop but doesn't seem likely for at least a couple of months!

Cheers,
Potato
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Stick to 99.99 % anything less you run the risk of water damaging your components and residue of water staying around componenets. This is based on experience.
Also if you only need to wipe of 2 pcs, it may be worth just buying a couple of alcohol swabs instead of a bottle of the isopropyl.
You may find it hard pressed to find it available at a reasonable price in a bottle as so many people are still making homemade hand sanitiser from isopropyl.
Jay9108/06/2020 16:06

Stick to 99.99 % anything less you run the risk of water damaging your …Stick to 99.99 % anything less you run the risk of water damaging your components and residue of water staying around componenets. This is based on experience. Also if you only need to wipe of 2 pcs, it may be worth just buying a couple of alcohol swabs instead of a bottle of the isopropyl.You may find it hard pressed to find it available at a reasonable price in a bottle as so many people are still making homemade hand sanitiser from isopropyl.


Thank you!
By swabs do you mean something along the lines of this?

amazon.co.uk/ALC…872
Sorry to mislead, I haven't purchased the wipes before. However, on researching them, unfortunately you cant source 99.9% wipes as they would dry out instantly. Typically any solutions with less than 99.9% alcohol is more used for sanitation and disinfecting. Whereas 99.9% is used more for electronics and removal of adhesive residue.

This price isn't that bad for 1L, not sure what the postage costs are though.
mbfg.co.uk/iso…tml
I’m using this from eBay IPA 99.9%
WhiteNoiseMaker08/06/2020 16:42

I’m using this from eBay IPA 99.9%



Jay9108/06/2020 16:22

Sorry to mislead, I haven't purchased the wipes before. However, on …Sorry to mislead, I haven't purchased the wipes before. However, on researching them, unfortunately you cant source 99.9% wipes as they would dry out instantly. Typically any solutions with less than 99.9% alcohol is more used for sanitation and disinfecting. Whereas 99.9% is used more for electronics and removal of adhesive residue. This price isn't that bad for 1L, not sure what the postage costs are though.https://www.mbfg.co.uk/isopropyl-alcohol-ipa.html


Thank you both!
Jay9108/06/2020 16:22

Sorry to mislead, I haven't purchased the wipes before. However, on …Sorry to mislead, I haven't purchased the wipes before. However, on researching them, unfortunately you cant source 99.9% wipes as they would dry out instantly. Typically any solutions with less than 99.9% alcohol is more used for sanitation and disinfecting. Whereas 99.9% is used more for electronics and removal of adhesive residue. This price isn't that bad for 1L, not sure what the postage costs are though.https://www.mbfg.co.uk/isopropyl-alcohol-ipa.html


Can you use 99.9% on skin?
You don't need a bottle of alcohol. Lighter fluid will do the job just as well, as will alcohol-based wipes for glasses. Either option should cost no more than £1.
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Jay9108/06/2020 16:06

Stick to 99.99 % anything less you run the risk of water damaging your …Stick to 99.99 % anything less you run the risk of water damaging your components and residue of water staying around componenets. This is based on experience. Also if you only need to wipe of 2 pcs, it may be worth just buying a couple of alcohol swabs instead of a bottle of the isopropyl.You may find it hard pressed to find it available at a reasonable price in a bottle as so many people are still making homemade hand sanitiser from isopropyl.


Although you're technically correct about lower % IPA and risk of water, I use the 70% wipes and it dries within 30s even without wiping it so as long as you give it a minute or so, it'll be fine.

(obviously only ever with the components disconnected from power)
You can usually buy a 400ml spray can in diy shops (if /when open) for around £5.

£5.54 from farnell but you need to spend £20 to avoid a handling fee.
uk.farnell.com/pro…535

or £7.95 from amazon
amazon.co.uk/PRO…769
You want to buy rubbing alochol to wipe off thermal paste from a CPU ?
zworld08/06/2020 19:15

You want to buy rubbing alochol to wipe off thermal paste from a CPU ?


Yes. Its what is recommended on pretty much all the videos I've seen on YouTube and from articles I've read online.
It is expensive now because it is used in hand sanitiser.
aMagicalPotato08/06/2020 19:16

Yes. Its what is recommended on pretty much all the videos I've seen on …Yes. Its what is recommended on pretty much all the videos I've seen on YouTube and from articles I've read online.



I have been replacing CPU's for years since the Pentium 4 days.
Use a kitchen towel and wipe off the current thermal paste. Repeat with a new kitchen towel and you are done.

The ones that suggest using rubbing alcohol are also the same weirdos who still use a electrostatic discharger even in this day and age!
zworld08/06/2020 19:21

I have been replacing CPU's for years since the Pentium 4 days.Use a …I have been replacing CPU's for years since the Pentium 4 days.Use a kitchen towel and wipe off the current thermal paste. Repeat with a new kitchen towel and you are done.The ones that suggest using rubbing alcohol are also the same weirdos who still use a electrostatic discharger even in this day and age!


I have always used the same a bit or kitchen or toilet roll I have found always does the trick. Probably be air down but the 15-20 times I have done it had never caused an issue. If your reapplying the paste you could always look at noctua, they do wipes for it or I believe if you by there thermal paste you get some with it. It's top quality stuff. Using it on my processor now and laptop
I use the WD40 Contact Cleaner picked it up from Screwfix when it was on offer for about £4.50 I use it to clean a lot of my electrical and works wonders. screwfix.com/p/w…716
robbiet08/06/2020 22:54

I use the WD40 Contact Cleaner picked it up from Screwfix when it was on …I use the WD40 Contact Cleaner picked it up from Screwfix when it was on offer for about £4.50 I use it to clean a lot of my electrical and works wonders. https://www.screwfix.com/p/wd-40-specialist-contact-cleaner-400ml/92716


Thanks, I’ll check it out!
Try AKASA Tim clean made for the job
andysamsungs09/06/2020 12:49

Try AKASA Tim clean made for the job


Yeah and it's got a good dispenser for use with cloths too (assuming they haven't changed it from when I bought my bottle many years ago).
aMagicalPotato08/06/2020 19:16

Yes. Its what is recommended on pretty much all the videos I've seen on …Yes. Its what is recommended on pretty much all the videos I've seen on YouTube and from articles I've read online.


Rubbing alcohol is isopropyl alcohol (IPA) but at a lower concentration (usually about 70%).
I use this stuff, highly recommended for degunking (I know you can use other stuff but this does a really good job, I've had all sorts of ebay and 2nd hand filthy tar covered pcs that I've modded and I thought this wouldn't work but it did)

41038460-0UvMw.jpg
Edited by: "Standby_Mode" 10th Jun
I’ve still got the same bottle of Akasa Tim clean that I bought about 12-14 years ago. Used it for every heatsink reseat I’ve done since and never an issue. Mine is a citrus based one, formulation may have changed since.

As for comments about potential water damage from not 99.99% pure alcohol. Your applying it to a soft cloth, tissue etc. Not giving it a bath. There’s greater risk wiping actual thermal paste onto components that any kind of liquid damage.
Oneday7710/06/2020 09:21

I’ve still got the same bottle of Akasa Tim clean that I bought about 1 …I’ve still got the same bottle of Akasa Tim clean that I bought about 12-14 years ago. Used it for every heatsink reseat I’ve done since and never an issue. Mine is a citrus based one, formulation may have changed since. As for comments about potential water damage from not 99.99% pure alcohol. Your applying it to a soft cloth, tissue etc. Not giving it a bath. There’s greater risk wiping actual thermal paste onto components that any kind of liquid damage.


+1, Mines only around 2 to 3 years old and has the same citrus-based formula, it's great.
Edited by: "Standby_Mode" 10th Jun
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