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MEK vs MEKP - 3/23/2005 4:53:59 AM   
RC Wingman


 

Posts: 28
Joined: 4/6/2004
From: anchorage, AK, USA
Status: offline 		I can find MEK locally, but not MEKP (methel ethel ketone peroxide)...will the MEK work as well as MEKP for an ignition improver or does it need the peroxide in order to work? I have checked auto supply, body shops and boat repair shops for MEKP but no luck. Another question, I have read where some use castor, others use 10-30W (not designed for combustion)...how about 2 stroke oil (which is for combustion) mixed at 25 - 30%? Bad idea? I have castor on hand, but also have the 2 stroke for motorcycles (Yamalube). Seems the 2 stroke would be better than 10 - 30W. Don't want to start another oil war here, just curious. Thanks for your help.
       Post #: 1

RE: MEK vs MEKP - 3/23/2005 5:18:15 AM   
SGC


 

Posts: 1033
Joined: 12/8/2004
From: OAKEYQueensland, AUSTRALIA
Status: offline 		Re oils, go to this site http://archive.dstc.edu.au/BDU/staff/ron/ select faq from the left index , scrol down select Q5 . this is an excellent explanation of oils , and why castor or motor oils are prefered especially in diesels.
Re MEK v MEKP im not sure but the peroxide is an oxidiser and is proberly the main excelerant in the compound the MEK the carrier and catalist .
Somebody correct me if I'm wrong .
Stewart

(in reply to RC Wingman)
       Post #: 2

RE: MEK vs MEKP - 3/23/2005 5:24:16 AM   
Motorboy



Posts: 1692
Joined: 2/7/2004
From: Bergen, NORWAY
Status: offline 		Are not sure what MEK stay for intials, MEKP are hardener for polyester resin for glassfibre. Ask the shop who sell polyesterresin hardener and read the label if it contens Methylene Ethylene Ketone Perokside. Never used 2 stroke oil because i am not sure how much are viscose in oil and will it prevent the mechanical pressure in our modelengines and keep piston/cylinder tight without leak. Viscose must be higher to prevent engine agains wear and leak. I am using between 10W40 and 20W50. 10W30 are a bit thinner oil and i can not like this oil in the engine. I can not like thinn oil since the oil can not keep tight and prevent leak. Castor oil are best oil for modelengines when the engine are running hot without oil are burned away and good lube agains wear in the engine, prevent rust, leak. I am using motoroil cause the dieselengine are not hot enough to burn away oil and good enough to smear the engineparts and prevent rust, leak. Both Castoroil and motoroil help to cooling the engine.

Jens Eirik

< Message edited by Motorboy -- 4/9/2005 5:39:19 AM >

_____________________________

Jens Eirik
All landings are just controlled crashes!

(in reply to RC Wingman)
       Post #: 3

RE: MEK vs MEKP - 3/23/2005 8:50:56 AM   
knarF


 

Posts: 84
Joined: 11/28/2004
From: None, NETHERLANDS
Status: offline 		Make sure when you check te epoxy and paint store's that you ask for the productname of the hardener they use/or sell.
Then lookup in cataloge or internet what the chemical name and supplyer is of the product.

I had no luck either, but when i knew my paintshop had "butanox 50" as hardener and the supplyer was "Akzo Chemical"
a quick search on the net revealed that this was MEKP. It just had another name.

I guess every epoxy shop get'sit products from a supplyer, go get the name of their supplyer and call their sales department.
(fyi; most sales people dont know what MEKP means.)

MEK does not work ( i tried it with noticeable effect)

Try,

[link=http://www.yellowpages.com/SearchResult.aspx?search=Paint%2c Glass %26 Wallpaper Stores&searchfor=Home %26 Garden&state=AK&city=anchorage&zipcode=&areacode=0&function=Search Category By Id&method=and&adv=6&page=tax&searchcategory=2960&mercnt=0%2b0%2b0%2b1&buscnt=0%2b0%2b0%2b15[/link]

Benjamin Moore should have what you need for example, or might be able to order it for you.

< Message edited by knarF -- 3/23/2005 11:46:00 AM >

(in reply to RC Wingman)
       Post #: 4

RE: MEK vs MEKP - 3/23/2005 12:11:54 PM   
AMB


 

Posts: 3880
Joined: 6/10/2003
From: winter park, FL, USA
Status: offline 		Over here stateside we are lucky enough to get premade diesel fuel I use the Davis products they have a 1/2 a an oily for plain bushing and an ABC mix the letter MEK is the apreviation for methyl Ethyl Ketone know as acetone here a solvent it is NOT of any value to make diesel fuel it is not an oxidizer MEKP is of course methyl ethyl ketone PEROXIDE the use of peroxides rather than nitrates
can be very hazardous in mixing although it is used martin

(in reply to knarF)
       Post #: 5

RE: MEK vs MEKP - 3/25/2005 3:26:46 AM   
John C



Posts: 259
Joined: 10/11/2002
From: Summerville, SC, USA
Status: offline 		Some corrections to various posts above. I went into Wikipedia to check out some of the materials discussed in this thread.

Acetone is Dimethyl Ketone, not MEK . Best known use is nail polish remover

Methyl Ethyl Ketone is also caled Butanone. Primary use is in paints as a solvent as it evaporates quickly. It is a solvent and flammable.

MEKP - Methyl ethyl ketone peroxide is a high explosive in its pure state. It is an oily liquid at room temperature. There is also an acetone peroxide; however it is a white powder at room temperature. MEKP is used in a diluted form (ratio not identified) as a polyester resin catalyst.

Bottom line appears to be, if you want MEKP get the resin catalyst

Hope this helps,

John C

(in reply to AMB)
       Post #: 6

RE: MEK vs MEKP - 4/9/2005 3:00:14 AM   
RandyRT


 

Posts: 26
Joined: 1/23/2005
From: Lake Lotawana, MO, USA
Status: offline 		Hey Group,

I was at my favorite salvage store today and I found the right stuff.

It's marked BONDO Liquid Hardener MEK Peroxide No.912

It comes in a clear tube with .37 fluid oz 11ml

Should be just enough for a quart of fuel.

Randy

(in reply to John C)
       Post #: 7

RE: MEK vs MEKP - 4/9/2005 8:12:53 AM   
knarF


 

Posts: 84
Joined: 11/28/2004
From: None, NETHERLANDS
Status: offline 		Bondo 912 has approx 30/40% MEKP, the rest is Dimethyil Phthalate. Dunno what it is, but I use butanox 50 wich has the same contents in same percentages. It works for me.

I use 2% butanox -> should be about 1% MEKP

< Message edited by knarF -- 4/9/2005 12:54:37 PM >

(in reply to RandyRT)
       Post #: 8

RE: MEK vs MEKP - 4/27/2005 2:43:11 PM   
ddd


 

Posts: 249
Joined: 9/28/2002
From: CT
Status: offline 		For all you diesel freaks out there MEK is bad stuff and no one should mess with it period. Cetane Boosters are availble in truck stops throughout most of the world to enhance cold weather starting.

(in reply to knarF)
       Post #: 9

RE: MEK vs MEKP - 5/5/2005 11:15:47 PM   
jfitter



Posts: 32
Joined: 10/22/2002
From: Mapleton, Queensland, AUSTRALIA
Status: offline 		MEKP - Methyl Ethyl Ketone Peroxide - This is one if the most powerful carcinogenics known to man. If you play with this stuff then you WILL get a cancer and die. Even breathing the vapour will kill you (eventually). It will also cause blindness if ANY quantity gets into your eye and is not flushed out within 4 seconds.

MEK - Methyl Ethyl Ketone - This is also a powerful carcinogenic.The electronic assembly house that I use has banned the presence of MEK on their premises. Many, many manufacturing companies that I deal with have banned MEK. Make no mistake - MEK WILL kill you.

I use these products in small quantities as a modeller. My lifetime exposure rate is very low and I wear the correct protective equipment. Gloves must be of the correct type, designed for MEK - it will go straight through rubber surgical gloves. When mixing and spraying paints using MEK (polyurethanes) I use an external air fed hood (like a helmet with an air regulator). These hoods are not expensive - I paid AUD250 for mine (about USD185) - better than being dead.


(in reply to ddd)
       Post #: 10

RE: MEK vs MEKP - 5/6/2005 3:32:32 PM   
downunder



Posts: 3198
Joined: 10/10/2002
From: Adelaide, AUSTRALIA
Status: offline 		I second what jfitter said about MEKP (well I have to...he's an Aussie ) although I didn't know about MEK. Long long ago when I was in the air force we had a safety notice go through about the dangers of MEKP, especially the few seconds you've got to wash it out of your eyes.

(in reply to jfitter)
       Post #: 11

RE: MEK vs MEKP - 5/11/2005 1:08:42 PM   
FrancisPerson


 

Posts: 674
Joined: 12/14/2001
From: Germantown, MD, USA
Status: offline 		Why not go to a truck stop and buy Cetane Booster? Its only a few bucks.

Francis

(in reply to RC Wingman)
       Post #: 12

RE: MEK vs MEKP - 5/11/2005 10:50:05 PM   
fiery


 

Posts: 1010
Joined: 2/2/2002
From: Hervey Bay Queensland, AUSTRALIA
Status: offline 		Francis

In Australia, cetane boosters for automotive diesel use are not commonly available as there is no demand. I believe that it is because pump distillate (diesel) fuel is (supposedly) of better quality in Australia than that found in the 'States.

A product used to be sold here called 'Wynns Diesel Boost', which was an anti-knock (cetane improver). It disappeared about 10 years ago. I still have a couple of bottles though . I bought it wherever I could find it when I heard it was being withdrawn!

fiery


(in reply to FrancisPerson)
       Post #: 13

RE: MEK vs MEKP - 5/14/2005 8:29:34 PM   
barkai


 

Posts: 125
Joined: 11/14/2004
From: Ha'huzat Barak, ISRAEL
Status: offline 		Try to look for "BUTANOX 50" at Plastic or Fiber glass store

_____________________________

REgards
Barkai

(in reply to fiery)
       Post #: 14

RE: MEK vs MEKP - 5/14/2005 9:54:42 PM   
MOJO65-9or10


 

Posts: 530
Joined: 2/11/2004
From: apple valley, MN, USA
Status: offline 		I used to work for nORTHWEST aIRLINES and they more or less banned it (MEK) for use everywhere except the composite shop. It IS some of the most nasty stuff around. If you are smelling it and for those of you that have used it you know it is pretty hard to use and not smell because it flashed off right now, you are hurting yourself. If you are planning to have kids DO NOT EVEN THINK ABOUT IT. It is a mutagent and will cause you to have kids with genetic mistakes. I used to work with a guy that used to use it and he DOES have problems from it. The great guy that worked in our paint shop died way early and all messed up from breathing the stuff, so do your self a favor and either use something (anything) else.

I would switch hobbies before I would use it. MEK KILLS

Dave

_____________________________

Damn, did YOU see where it landed (#$@$)

(in reply to barkai)
       Post #: 15

RE: MEK vs MEKP - 5/14/2005 10:54:04 PM