Ultrasonic cleaning

[Evets]

I've just bought an ultrasonic cleaner and wonder what the fluid of choice is? Isopropyl alcohol was my first thought.

[CapLeaker]

I mix hot water with Dawn dish detergent and a little bit of 99% IPA @ 50 to 60C.

[Evets]

Thanks, that should be easy to produce.

[Agent24]

That's are also cleaning fluids specifically formulated for the task.

Not sure IPA is a good idea because you'll get a lot of fumes.

[Evets]

Can you recommend one?

[Agent24]

Louis Rossmann recommends Branson EC
https://store.rossmanngroup.com/inde...t/list/id/329/

I've never used it, seems to be a specifically formulated detergent

CapLeaker's suggestion is probably cheaper

[Evets]

That one sounds good but with shipping to the UK it becomes expensive.

[rogfanther]

As a question, is it un-recommended to clean certain parts in the ultrasonic cleaner ? Was thinking of trying to use one to remove some/a lot of sticker glue from some older cpus...

[CapLeaker]

I don't even use the ultrasonic cleaner for removing sticker glue. 99% isopropyl rubbing alcohol or acetone makes that squeaky clean.

[rogfanther]

Since they are old cpus ( Socket 462 and Pentium 3 time ) , I will try with acetone and see how it works. Not a big loss if the chip ends up dissolving

But the sticks and glue are from the "Warranty Void" kind, so it is stronger. Will try to take some pictures to post here.

[stj]

to remove sticker glue cheap & fast, just use white spirit.
it also desolves the pink or gray thermal gum used by some companies to put heatsinks on graphics cards and motherboards.

[stj]

btw, here is the rossmann cleaner
https://www.proequip.com/product/ec-...onics-cleaner/
if you download the SDS (Safety Data Sheet) it will tell you whats in it

[redwire]

The main ingredient is 70-80% Monoethanolamine. "It is used in laundry detergents, hand and dish washing detergents, degreasers, hard surface cleaners and multifunctional detergents and disinfectants."

Ultrasonic cleaners are very hard on electronics, don't leave stuff in the bath a long time. They actually etch the metals. Semiconductor IC bond wires, quartz crystals breaking I have seen. I have a 60-90 second max.
For glue or adhesive I would expect it to do nothing because the glue just flexes. If IPA does not clean that off, then strong solvents like acetone I use with a Q-tip.