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Has anyone tried mixing water v acetone or acetone through something that doesn't attack abs (like alcohol.)

I didn't desire to waste the acetone to try and uncover out the doesn't work, because it's tough for me to acquire right now and I don't feeling environmentally an excellent about that. But I was thinking if the acetone mixture wasn't as strong, presumably the piece wouldn't melt too swiftly as the does in consistent acetone.

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I make the efforts due-diligence and also googled a bunch, however heard naught of it. Just civilization working ~ above tumblers and also vapor smoothing.

Many thanks,-Tomek


Re: mixing Acetone and also Water for less aggressive finishing? go this work

From the wikipedia page > "Acetone is miscible with water" http://en.wikipedia.org/wiki/Acetone

In short yes


Re: mix Acetone and also Water for less aggressive finishing? does this work

A most chemicals that are referred to as 'safer' space usually simply diluted v some inert fluid such as water and they market it in ~ the same price or more because it's safer yet the toughness and action time are lacking...


Re: mix Acetone and also Water for much less aggressive finishing? go this work

Its acetone vapour that does the work-related not liquid acetone incidentally... For this reason alcohol might speed up the procedure as it will cause increased evaporation compared to water.

The main thing is an excellent ventilation to dissipate the vapour and an air flow to prevent it 'pooling' in valleys in the print.

Water mix will alleviate the vapour concentration, yet it won't actually reduce the effectiveness of that vapour


Re: mix Acetone and Water for less aggressive finishing? walk this work
adrian wrote:

Its acetone vapour the does the work not liquid acetone incidentally... Therefore alcohol may speed increase the process as it will cause increased evaporation contrasted to water.

The key thing is an excellent ventilation to dissipate the vapour and also an air circulation to avoid it 'pooling' in valleys in the print.

Water mix will mitigate the vapour concentration, however it won't actually minimize the performance of the vapour


So, i was imagining obtaining the right ratio that you could dunk the part in the mixture, together opposed to taking care of ratios.

I have actually in the past simply splashed acetone ~ above the component to smooth parts, so I'm not certain I completely follow you once you to speak it's the vapor that does the work. In the situation of dunking, it seems not to be the vapor, however dunking in 100% acetone is just method too aggressive.


Re: mix Acetone and Water for less aggressive finishing? does this work

I had actually some time after ns got ago this morning so here is a quick'n'dirty test...no prior to pics... Sorry

*

Temp was 65FPercentages space acetone

The very first sample at 100% is predictable the 2nd is 75% began to show signs that smoothing and also the surface ar was fairly soft, the third sample had actually a very little showing the smoothing and also the surface ar was barely softened... As for the critical one... The didn't seem to show any type of effects the acetone in ~ all...I think if the time were double at 75% it would look pretty good.


Re: mix Acetone and also Water for less aggressive finishing? walk this work

Thankyou!

To clarify, Ronsii, you were dunking the components in the mixture?

I discover it really interesting how though only at 25% water it was an extremely stabilized and also only melted slowly.

I personally would prefer something that limits me from having actually to use vapor techniques.

To clarify, you claimed that was Acetone / Water = 75%. I'm unsure if you expected you had a 25% water 75% acetone mixture, or a 1:1.33 proportion of acetone:water.


Re: mixing Acetone and Water for less aggressive finishing? does this work

Correct: ns was dunking, the percent is acetone, 75%(on the paper) = 75% acetone and also 25% water.

I simply dropped the components in a glass jar v the mix and put the lid on then stirred them around every 10 mins.

Oh.. And also just to be details the mix was by volume no weight... Not that it transforms much.


Re: mixing Acetone and also Water for much less aggressive finishing? go this work

Not certain if that would should be stirred or not? i guess that would be another experiment

I was surprised at the slowness of the mix myself.


Re: mix Acetone and Water for less aggressive finishing? walk this work
Tomek wrote:

I have in the past just splashed acetone on the component to smooth parts, so I'm not sure I totally follow you when you to speak it's the vapor the does the work. In the case of dunking, it seems not to be the vapor, however dunking in 100% acetone is just method too aggressive.


Its the vapor the acetone, together molecules rest off, that attach to the ABS and eat it. Fluid Acetone doesn't 'do' anything... Dunking something in 100% mix of it is obviously more aggressive, because you have actually 100% concentration that liquid developing highly focused vapor.

Low concentrations will produce less vapor.

But its no acetone in a liquid type that is act anything lot to your plastic - that is the vapor. Its the same means that petrol doesn't burn no issue how hard you try to ignite the fluid - just the vapor will certainly burn. And also in the same way there requirements to be a proportion of air:fuel vapor to have explosive conditions to occur...

So mine original suggest - its not the quantity of acetone liquid as a proportion that problem - its just how fast and how hard it evaporates the dictates exactly how aggressive the is... Therefore Alchohol will certainly *accelerate* the procedure as it motivates faster evaporation and also water loved one to acetone and alcohol will sluggish it down. The game is what ratio produces the best time through the finest ratio of vapor.

And this is why I said air circulation is an ext important a contributor - as sitting in quiet air, vapor will certainly clump. In moving air, it has actually less possibility to grab part ABS as it sails off right into the atmosphere...


well ns respect your answers, however I to be not certain I am really believing/understanding it.

Can you provide a bit much more background for wherein you're comes from making those particular statements? room you talking about how dunked solids theoretically have a class of air approximately them always? because generally the liquid does still carry out something to the ABS. Uneven it's miscellaneous special v the acetone-abs melting i assume it's normal solvent-solute interaction from a polar molecule

Acetone vapor doesn't "eat" plastic so far as I'm understanding, it deserve to just condense and melt onto the ABS.

But I know there's a ingredient I'm probably not understanding. I've viewed vapor condensing working well, for this reason there have to be something favorable to the vapor- probably that's what you're talk about.

Sorry if I'm derailing the thread, ns am simply wondering what I'm not expertise correctly because usually Adrian your write-ups make instant sense come me.


I'll destruction up a bunch of scientific data because that you Tomek and also post that in an additional thread later in the week. It'll bore the crap the end of most people I warn you now...

But in the meantime, think about why vapor handling would occupational so well so fast, compared to straight acetone dunking that can take quite a when to gain equivalent results of 5mins that vapor work... How/why the break down of the butadiene occurs and what that way for the acetone, and whats happening to the styrene .. What is the 'solution' that is created as a result, what is that equilibrium, what is the saturation level, etc...

Anyway - I'll conference up info for you end the next few days. Prepare to be underwhelmed.

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Oh boy! i am sorry though, please let it drop if girlfriend don't have time because that it. This morning ns am more willing to understand that vapor have the right to have part serious advantages if only for kinetic energy reasons.

Also, just your suggest that reminded me ABS is a mix of 3 plastics, was a great reminder the there's a lot walk on that i don't yes, really understand.

Right now I'm to buy a 12 quart stock pot i think I'll it is in begrudgingly practicing the vapor method. Ns don't have sufficient acetone come soak my components in acetone and also water. I'll execute tests once I have small parts but for currently I'm treating very big parts.