Cleaning Solution Evaporation
One of the interesting things about isopropyl and water mixtures is that the isopropyl doesn't evaporate faster than the water. Typically, as your question implies, one would expect the more volatile component (the isopropyl) to evaporate more quickly than the water. But, mixing isopropyl and water creates an azeotrope, which means the two can't be separated by vaporization.
The mix ratio of the unvaporized liquid solution is equal to that of the vaporized solution! So, the water and IPA ratio remains constant in your tank even as liquid evaporates.
If you're obsessed about keeping the mix ratios the same as the liquid evaporates and you need to refill, you should add both water and IPA in whatever ratio you want to keep. But it's not absolutely necessary. I usually just top off with purified water during my sessions. I don't tend to keep the cleaning solution after a long cleaning session. I dump it, but I can understand trying to make it last longer.
Cheers,
B B
One of the interesting things about isopropyl and water mixtures is that the isopropyl doesn't evaporate faster than the water. Typically, as your question implies, one would expect the more volatile component (the isopropyl) to evaporate more quickly than the water. But, mixing isopropyl and water creates an azeotrope, which means the two can't be separated by vaporization.
The mix ratio of the unvaporized liquid solution is equal to that of the vaporized solution! So, the water and IPA ratio remains constant in your tank even as liquid evaporates.
If you're obsessed about keeping the mix ratios the same as the liquid evaporates and you need to refill, you should add both water and IPA in whatever ratio you want to keep. But it's not absolutely necessary. I usually just top off with purified water during my sessions. I don't tend to keep the cleaning solution after a long cleaning session. I dump it, but I can understand trying to make it last longer.
Cheers,
B B
Last edited:
Cleaning Solution Evaporation
Thanks bbftx
I had the same question about alcohol evaporation
What about Photo Flo?
does it evaporate
I just started using Photo Flo so unsure of how it lasts
I typically clean 30 to 50 LPs at a time over one-two day period
Thanks for all you have added to this discussion
my LPs also thank you for it - they are so clean now
Thanks bbftx
I had the same question about alcohol evaporation
What about Photo Flo?
does it evaporate
I just started using Photo Flo so unsure of how it lasts
I typically clean 30 to 50 LPs at a time over one-two day period
Thanks for all you have added to this discussion
my LPs also thank you for it - they are so clean now
Hi Laiphroaig,
Always glad to hear about happy LPs...
Photo Flo shouldn't disappear/vaporize at all from the liquid solution. It's completely miscible in water (it is 70% water) and the other main ingredient, propylene glycol, has a higher boiling point than water. Plus, I don't think much of it should be used to begin with -- just a drop or two. So, I would anticipate that you don't need to add any more photo flo to a cleaning solution over time.
Good Luck,
B B
Always glad to hear about happy LPs...
Photo Flo shouldn't disappear/vaporize at all from the liquid solution. It's completely miscible in water (it is 70% water) and the other main ingredient, propylene glycol, has a higher boiling point than water. Plus, I don't think much of it should be used to begin with -- just a drop or two. So, I would anticipate that you don't need to add any more photo flo to a cleaning solution over time.
Good Luck,
B B
For all of you who are still challenged finding precision metal parts, look here.
Manufacturer of Precision Components | Spur Gears | Sprockets | Timing Belts | Timing Pulleys | Miniature Bearings | Shafts | WM BERG Engineered Mechanical Components
Manufacturer of Precision Components | Spur Gears | Sprockets | Timing Belts | Timing Pulleys | Miniature Bearings | Shafts | WM BERG Engineered Mechanical Components
Hello.
I have read the need to find 5 rph engines in Europe, I found this page which may be of interest.
0,5 Nm, ovoide, 3,5 vatios : Motores síncronos industriales especializados - Crouzet
A greeting.
I have read the need to find 5 rph engines in Europe, I found this page which may be of interest.
0,5 Nm, ovoide, 3,5 vatios : Motores síncronos industriales especializados - Crouzet
A greeting.
I just built a US cleaner using a 50k 6L Chinese unit. I used the cleaning mixture mentioned 1.5 gallons distilled, 3 oz 90% IPA and 3 drops Triton x 114. I was actually dissapointed with the results as I could still see smudge points on the records I cleaned. Should I be adding a little liquid soap or? Any thoughts would be appreciated. My rotation speed is 5 rph.
Hi ZG,
The first place to look is at the ultrasonic machine. Can you post a link to the unit you bought? There are a lot of inexpensive units from China that don't work well, unfortunately.
You should try a foil test to see if the machine is actually working properly. Look toward the bottom of this webpage for a description of the test:
Ultrasonic Cleaner Foil Test
Don't use the DI water or cleaning fluid for cleaning LPs after you've done a foil test.
There's no reason to add soap. Proper ultrasonic cavitation cleans without soap.
Good luck
B B
The first place to look is at the ultrasonic machine. Can you post a link to the unit you bought? There are a lot of inexpensive units from China that don't work well, unfortunately.
You should try a foil test to see if the machine is actually working properly. Look toward the bottom of this webpage for a description of the test:
Ultrasonic Cleaner Foil Test
Don't use the DI water or cleaning fluid for cleaning LPs after you've done a foil test.
There's no reason to add soap. Proper ultrasonic cavitation cleans without soap.
Good luck
B B
Hey BB,
The link below is what I bought. I did the tin foil test and it apears to be working properly. Yeah, it's cheap but....I don't think it's the issue.
Industrial 6 5 Liter Ultrasonic Cleaner w Timer Heater | eBay
The link below is what I bought. I did the tin foil test and it apears to be working properly. Yeah, it's cheap but....I don't think it's the issue.
Industrial 6 5 Liter Ultrasonic Cleaner w Timer Heater | eBay
I noted it says hard metal and glass are materials most effectively cleaned and that plastics damp the US waves. It might be good to do the foil test with the records immersed. Quite possibly better US cleaners are less affected.
I take peppering to mean dimples not actual perforations - is that correct?
I take peppering to mean dimples not actual perforations - is that correct?
Hi Zg, The specs say this machine operates at 30khz on 50 hertz AC power. It is most definitely not a 50khz machine.
B B
I read that description a hundred times at least and missed the 30khz ~ 50 hz remark. Hopefully I can return. If not I have an expensive carb cleaner. I had just picked up a 13" x 12" sonix IV tank without heater which I will try.
Many thanks for the PDF! I was noting that on the Sonix website they list the ST136H at $890.
Ultrasonic cleaning equipment
Dental Supply
Hi Doc,
Don't buy direct from Sonix --- it's quite expensive since they did away with their eBay selling program. I'm sure their distributors didn't like being undercut on price by the manufacturer.
Medical and dental supply companies sell the ST136H for around $600. That's the most economical way to buy the unit these days.
Cheers,
B B
Hi Doc,
Don't buy direct from Sonix --- it's quite expensive since they did away with their eBay selling program. I'm sure their distributors didn't like being undercut on price by the manufacturer.
Medical and dental supply companies sell the ST136H for around $600. That's the most economical way to buy the unit these days.
Cheers,
B B