MEK where to find it [solved]

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wackojacko
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MEK where to find it [solved]

Post by wackojacko » Wed Nov 14, 2012 6:41 am

In Australia you can easily get MEK Methyl ethyl ketone from most Plumbing Supplies shops and most hardware shops. They refer to it as Plumbing Priming Fluid there are a few different brands. Bostik, Ozseal. It comes in either clear, pink or purple.

You can also use Citrolene, it works very similar to MEK but is safer.

Coating the surface of your model with MEK will increase the parts strength by about 70%!

For super strong parts do the following:

1.) Print with the honeycomb solid or semi solid setting.
2.) Print at 0.15mm (Plus) or 0.2mm(Mini) - the finer the better!
3.) Coat 3 continuous coats over the model, the MEK will use capillary action and soak into the part and fuse the internal fill to make it a solid internal structure.

E.g. For coating a box, coat the top and side surfaces with three continuous coats (don't stop and let it dry between coats) Let it dry, then do the same for the underside.

Tests carried out allowed a 3d printed part to hold 70psi for a week by using the above.
When NOT using MEK tests carried out allowed a 3d printed part to hold 12psi for a week.

Safety - READ THE Material Safety Data Sheet for the MEK you purchase!!!
Bruce
http://www.3DPrintingSystems.com

Need help with your printer, check out our Youtube channel.
https://www.youtube.com/user/3dprinting ... /playlists

roller
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Re: MEK where to find it [solved]

Post by roller » Wed Nov 14, 2012 6:54 am

Actually, as someone who lives in Australia (rather than making a post on availability from another country) and searched for it for two weeks ... the supply of clear MEK is drying up. Most plumbing suppliers do not stock it (in Queensland and Northern NSW at least) because it is illegal to use in plumbing. It is sold in stores which only supply agricultural supplies where it is still legal to use clear although one store said they expect it will be banned in the future. The plumbers do still sell coloured MEK which is legal to use for plumbing but will obviously tint your plastic.

Bunnings still has some supply on shelves but said they would no longer be getting it in - again because it not legal to use in plumbing. They will probably still stock the coloured stuff as well but I didn't get a straight answer on that. Two of the stores I visited no longer stock it in normal reach from the aisle. Either behind a counter or requiring stair/ladder or being tall to access the upper shelf it is kept on.

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Lawrence
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Re: MEK where to find it [solved]

Post by Lawrence » Wed Nov 14, 2012 7:23 am

Hi Roller
Obviously Julia Gillard thinks we all want to sniff MEK.
Regards
Lawrence

roller
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Re: MEK where to find it [solved]

Post by roller » Wed Nov 14, 2012 7:53 am

I'm not entirely sure it's all states which are so restricted since much of this legislation is state based in Australia but it could be that too many of Julia's ministers have been sniffing it in parliament ;)

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wackojacko
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Re: MEK where to find it [solved]

Post by wackojacko » Wed Nov 14, 2012 9:21 am

In some states the clear MEK is banned from sale, but the purple or pink should still be available. Don't ask for it as MEK, ask for it as Plumbing Priming Fluid.
Call your local plumber. I hope this advise is useful to you. If you can't find it use Citrolene it works even better than MEK and it is safer to use :D
Bruce
http://www.3DPrintingSystems.com

Need help with your printer, check out our Youtube channel.
https://www.youtube.com/user/3dprinting ... /playlists

roller
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Joined: Sat Oct 06, 2012 9:09 pm
Location: Brisbane, Australia

Re: MEK where to find it [solved]

Post by roller » Wed Nov 14, 2012 9:45 am

Actually, it's (clear) banned from use in plumbing not banned from sale. It's just plumbing suppliers don't sell what can't be used and as a matter of liability don't stock something that is illegal to use. Most plumbers also wont have it so an apprentice can't accidentally use it. It is actually illegal to use the clear in plumbing nationally. It's also illegal to post or ship without full hazardous materials disclosure and appropriate handling so don't bother ordering it online in Australia because postage will either cost you 10 times the cost of MEK or you risk getting in trouble should it leak in the post (unfortunately it is as illegal to ask for it to be posted as it is to do the posting)... again this is all an Australian issue ... everyone living somewhere else ignore the above.

Bruce, does the citrolene evaporate as quickly as the MEK ... if not does this vary how we should use it ie should we use less as it will stay on the model longer - is there a risk of melt? Also, presumably you can't use the citrolene to make ABS adhesive to join models or help bed adhesion or can it be substituted for these uses too?

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