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Member

Join Date: Nov 2006
Location: Twin Cities, MN
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Alterative to methyl ethly ketone "MEK"

07/09/2007 9:31 AM

Currently our machine shop is dipping ABS plastic parts into methyl ethyl ketone (MEK) to make a high gloss shine. This has been working well but I am looking for alterative to MEK that is more environmentally friendly. Any thoughts?

Thanks,

Mike

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Active Contributor

Join Date: Jul 2007
Posts: 11
#1

Re: Alterative to methyl ethly ketone "MEK"

07/10/2007 8:54 AM

Try acetone. I wouldn't exactly call it "environmentally friendly" but it's not quite as nasty as MEK. The SAN portion of the ABS should be soluble in the acetone. I'm not exacctly sure you'll get a high gloss but you'll definitely get some flow of the polymer.

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Popular Science - Weaponology - Cardio-7

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#2

Re: Alterative to methyl ethly ketone "MEK"

07/10/2007 9:14 AM

As Thixotrope (#1) suggests, acetone (dimethylketone) is a substitute for MEK. However, be aware that the flash point is something like minus 17 C, so be sure of your safety arrangements, grounding, etc. Also, most, if not all, of the larger solvent mfg'ers (and some distributors) offer solvent blends to replace MEK. Contact them also. Tert-butyl acetate (Lyondell) has been approved as a "green" solvent, altho it is not as aggressive as MEK. You might look at this solvent also.

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Participant

Join Date: Feb 2007
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#3

Re: Alterative to methyl ethly ketone "MEK"

07/10/2007 10:24 AM

MEK is a powerful solvent and without knowing how strong a solvent you need it's difficult to answer. You might try dimethyl carbonate (non-ozone former and about as strong a solvent as toluene) or tert-butyl acetate (also a non-ozone former). Both would be somewhat weaker solvents than MEK.

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#4

Re: Alterative to methyl ethly ketone "MEK"

07/10/2007 11:03 AM

what about eliminating the use of solvent altogether?

or use Polyclean 2000

its an environmentally friendly replacement

check www.geoenvirogroup.com

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#7
In reply to #4

Re: Alterative to methyl ethly ketone "MEK"

07/10/2007 10:59 PM

Not as bad as MEK, but isn't that the stuff that makes the dead come back to life?

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#5

Re: Alterative to methyl ethly ketone "MEK"

07/10/2007 11:28 AM

Hai Mike,

MEK is in ketone group, somthin like acetone, it is prefred for cleaning process for it leave no residue.Being very volatile like alcohol or ethanol which can do the same job.

It is also use in the extraction of sodium pertchnetate in the productions of Technetium 99m radichemical whis is used in radiophamaceuticals.

It is environmentally friendly

Regads,

Arbikay

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#6

Re: Alterative to methyl ethly ketone "MEK"

07/10/2007 11:48 AM

Is it absoultely necessary that the product have a shine? I found several times when re-engineering a product decisions like adding a shine has been made for no reason at all. It felt good at the time is what I heard a lot but was a waste of money, time and resources.

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Join Date: Aug 2007
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#8

Re: Alterative to methyl ethly ketone "MEK"

08/09/2007 1:20 AM

MIBK will work well as it will not evaporate as fast as MEK. Hope this helps.

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