91 % IPA with One drop of Triton 100

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mark79
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91 % IPA with One drop of Triton 100

Post by mark79 » 15 Oct 2017 22:13

Dear Vince1: What would happen if I just used pure 91% IPA and added one eyedropper drop of Triton 100? I don't have room for a record cleaning machine. I've had really good luck with just straight 91% IPA and an old discwasher brush to bring some very dirty thrift store albums back to life. That's one drop of Triton 100 to 16 ounces of IPA. This is a chemical short cut, but will it work? I have a feeling that that's all that some of these very expensive vinyl record cleaners are. $20.00 a bottle for the same thing is a rip-off. I also like the 91% IPA better than the 70% IPA. What are your thoughts? Thanks; Much Regards; Mark79

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Re: 91 % IPA with One drop of Triton 100

Post by mark79 » 15 Oct 2017 22:24

Also Vince1: Some new vinyl right out of the sleeve will skip due to pressing particles smashed into the grooves during packaging. Sometimes I'll use a microfiber cloth with 91% IPA or with the discwasher brush and find that the 91% IPA will very guickly remove these particles after 4 or 5 revolutions. The 91% IPA seems to work very well for this. This is straight pure 91 % IPA. Thanks; Much Regards; Mark79

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Re: 91 % IPA with One drop of Triton 100

Post by cats squirrel » 15 Oct 2017 23:42

if it's only '91% pure', it's not pure, is it! The rest may be just water, let's hope. [-o<

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Re: 91 % IPA with One drop of Triton 100

Post by cats squirrel » 16 Oct 2017 00:55

cats squirrel wrote:if it's only '91% pure', it's not pure, is it! The rest may be just water, let's hope. [-o<
IPA (propan-2-ol) forms an azeotrope with water, with a composition of 91% IPA. So it is just a solution of IPA and water that has been distilled.

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Re: 91 % IPA with One drop of Triton 100

Post by mark79 » 16 Oct 2017 01:54

Thanks cats squirrel: Yes, it's distilled so the rest is water. Here they sell what they call 91% in the pharmacy and 70%. There is another form of it that I stay away from that has other stuff in it for massaging. I've had good luck with the standard 91% used with either a microfiber cloth or the discwasher brush to clean very dirty thrift shop finds. I was just wondering if I could add one drop of Triton X-100 to the bottle (473)mL or 16 ounces. Triton is a wetting agent. I've used Kodak Photoflo in the past, but it clogs the stylus. There is an excellent wetting agent made in England, I've forgotten the name of it, but it's very hard to find here. Years ago, I used a very good product from there called Watt's, it was very good. Thanks for replying and any suggestions or advice would be greatly appreciated. Thanks; Much Regards; Mark79

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Re: 91 % IPA with One drop of Triton 100

Post by pinenut » 16 Oct 2017 16:47

Here’s a good source for photographic wetting agents, besides the Kodak Photo Flo:

http://www.freestylephoto.biz/category/ ... %5D=30-146

There is some MSDS info on the site. Maybe someone here would like to have a look and determine if any of those seem useful for records..

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Re: 91 % IPA with One drop of Triton 100

Post by vince1 » 16 Oct 2017 18:21

Mark, you could, but you wouldn't want to use IPA in this high a concentration. Studies by preservationists (*) have shown extraction of additives (plasticizers, stabilizers, etc) from PVC objects at alcohol concentrations above 60%. For this reason, I recommend 15% or lower alcohol in record cleaning solutions. Also, Triton X-100 is best used as a detergent, at appropriate concentrations to form micelles. The "wetting agent" is a property of surfactants as they disrupt the surface tension of water. Photoflo does this with a similar surfactant, but their product is mostly (25-30%) Propylene glycol which is a sticky molecule we don't want on our records. If you insist on using a photographic agent, use Ilfotol, which is just non-ionic detergent (1-5%, like Tergitol) and a small amount (<1%) preservative (alkyllisothiazolinone). Better yet, make your own Triton or Tergitol mix without the other junk for mere pennies.



*See, for example,: http://www.academia.edu/9376344/A_model ... ns_objects

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Re: 91 % IPA with One drop of Triton 100

Post by cats squirrel » 16 Oct 2017 23:57

but where does it say that the vinyl as used in vinyl record production contains plasticizers?

Agree that the best solution (pun intended) is to use 25-30% IPS and water with a little very water soluble surfactant (detergent) added.

If 'stains' remain stubborn, I have used biothanol (100%) or even pure d-limonene to effect the job. I buy second owned vinyl, sometimes from some very dubious sources, so it is a good ploy to have some safe solvents in the cupboard. :D

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Re: 91 % IPA with One drop of Triton 100

Post by vince1 » 17 Oct 2017 02:55

I was careful to say "additives". If you think your vinyl is simply a PVC-PVA polymer mix, you are grossly mistaken. In fact, if you examine the many patents covering vinyl record mixes, you see that the polymers make up only only a fraction of the content within our records. These additives are attached non-covalently and some can be leached by certain solvents.

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