What contains Mek-Pak slatters ?
Bruno Baguette
I intend to bought a bottle of pure MEK (Methyl-Ethyl-Ketone) in a
chemistry store in order to use it for building my models.
Is somebody know if the Mek-Pak Slatters is only pure MEK or if it is a
MEK in solution ? If it is a MEK in solution, do you know the percentage ?
Other question, can I use pure MEK or should I put the MEK in solution ?
Thanks in advance ! :-)
--
----------------------------------------
Bruno Baguette - bou...@alussinan.org
Mike Parkes
>Hello !
>
>I intend to bought a bottle of pure MEK (Methyl-Ethyl-Ketone) in a
>chemistry store in order to use it for building my models.
>
>Is somebody know if the Mek-Pak Slatters is only pure MEK or if it is a
>MEK in solution ? If it is a MEK in solution, do you know the percentage ?
>
>Other question, can I use pure MEK or should I put the MEK in solution ?
>
Slaters Mek-Pak doesn't contain MEK due to serious health risks - i
twas changed a number of years ago but the name of the product was
unaltered. The current variety contains Halogenated Allphhatic
Hydrocarbon which is still a harmful product.
Mike Parkes
mi...@mphgate.demon.co.uk
Trainman
Bruno Baguette <bou...@alussinan.org> wrote in message
news:3D4C0D44...@alussinan.org...
I don't know how "pure" it is, but "straight" MEK is available in pints,
quarts and gallons in the USA in almost any paint/hardware store.
In solution with what?
Testors original plastic cement was "pure" MEK
Don
--
don.de...@prodigy.net
http://www.geocities.com/don_dellmann
moderator: WisMode...@yahoogroups.com
moderator: MRP...@yahoogroups.com
http://www.yahoogroups.com/group/MRPics
Mike Smith
will still glue ABS though (as in the cheaper grey Plastruct elements)
regards
Trev
>
> I intend to bought a bottle of pure MEK (Methyl-Ethyl-Ketone) in a
> chemistry store in order to use it for building my models.
>
> Is somebody know if the Mek-Pak Slatters is only pure MEK or if it is a
> MEK in solution ? If it is a MEK in solution, do you know the percentage ?
>
> Other question, can I use pure MEK or should I put the MEK in solution ?
>
> Thanks in advance ! :-)
A non chemist view. I too tried to get MEK at my chemist but had to get it
in large qty. A friend in discussion found out that working in a garage size
environment just removing the cap for a extended period can have strange
effects on the body. So be very careful how you do it. Current legislation
will have caused Slatters to Dilute it more then the original, after all
kids can buy it.
You must Put it In a solution but Of what. I Think it was Iso-alcohol. But
pleas don't just take my word for it . TAKE CARE
kramer last
around the home. VERY flammable and you HAVE to be in an extremely well
ventilated area. There are a lot of health risks attached to MEK and it
absorbs readily through the skin and is persistent in the body (i.e. like
mercury it stays and isn't flushed. More exposure, more MEK in the body).
My husband is an Air Force Crew Chief and I was Medical, the restrictions on
using it on the flight line were VERY strigent. MEK will dissolve aluminum
and plastic and I wouldn't put any thin sheet metal in contact with it. In
other words, DON'T!
Jon Miller
very expensive way to buy MEK.
MEK is available in most all paint or hardware stores at around 10-15
dollars a gallon. And it's pure MEK if you buy it that way. MEK is a
common plastic glue but it won't bond engineering plastics and certain
others. For styrene it's excellent.
Ken Durling
<dom.de...@prodigy.net> wrote:
>
>Testors original plastic cement was "pure" MEK
My bottle of Testor's liquid cement - bought recently - says "contains
MEK". I don;t know if that implies that it isn't "pure" or not, but
thought I'd report. I don't use it much, preferring more benevolent
substances.
Ken Durling
IPMS/USS Hornet, Pres.
PPSEL
Just Plane Crazy
JP5844
>and plastic and I wouldn't put any thin sheet metal in contact with it. In
>other words, DON'T!
WHAT????
No sense in getting into a panic over the stuff, I was a helicopter mechanic,
Crew Chief and Flight Engineer in the Marine Corps and Army for over twenty
years and have been involved in industrial safety for fifteen years, and if MEK
is used in accordance with the directions that are outlined in the MSDSs there
is little chance of being harmed.
Of course in this day and age of no one having the 'nads needed to accept
responsibility for their own stupidity, I wouldn't be surprised if some idiot
drank the stuff then tried to take the manufacturer to court.
While MEK should be used while observing certain precautions it certainly
doesn't disolve aluminum and it hasn't disolved any of the plastic containers
that are in use where I work.
If you are going to make statements like that, you need to qualify what types
of plastic you are talking about. Yes the stuff will disolve styrene, but a
plastic jug (like the ones that milk comes in) will work just fine for storing
it.
As far as disolving aluminum, I find that very hard to believe, and the
statement that it will disolve thin sheetmetal is a load of crap. The stuff
comes in 55 gallon drums made of "thin sheetmetal", If these containers could
be "disolved" by MEK, then the DOT, OSHA, and EPA wouldn't allow the stuff to
be shipped, stored or used.
A common misconception where I work is that MEK is more hazardous than Toluene,
while both of these chemicals can be hazardous, the fact is that Toluene is
much more hazardous than MEK.
MEK, like Acetone (women use this crap all the time but don't bitch about it,
becasue it cleans up nail polish) has a low vapor pressure, so when it is
opened it is noticed much quicker than some of the other stuff that is much
worse on the respiratory system and CNS.
If a person follows the precautions outlined in the MSDSs for MEK, there is no
reason that they should suffer any short term or long term effects from using
the it.
Jonathan Primm
Industrial Safety Manager
Air Logistics
Stuart Sabatini
don't know what that product is that you purchased.
Stuart Sabatini
Palm Coast, FL
"Bruno Baguette" <bou...@alussinan.org> wrote in message
news:3D4C0D44...@alussinan.org...
Ken Durling
>If a person follows the precautions outlined in the MSDSs for MEK, there is no
>reason that they should suffer any short term or long term effects from using
>the it.
Jonathan -
Is the information contained in the MSDS's you refer to available to
the general public? I'd like to have access to them, because I
believe you are correct. There are plenty of hazardous materials that
are part of daily life becuase we know how to use them.
Bob May
comes in various grades depending upon the level of the impurities in it.
Any level is good for doing plastic welding as long as it hasn't been used
for doing things like degreasing, etc.
--
Bob May
Global WARMING???
What I want to know is when I can start growing wheat in Greenland again!
KEV OF BBA
You can use neat MEK -BUT be aware the fumes can be hazardous and
are alleged to be carcinogenic- If you must use this stuff please ensure the
area is well ventilated otherwise your health may suffer.
Cheers
Kev
John Turner
"Bruno Baguette" wrote
> I intend to bought a bottle of pure MEK (Methyl-Ethyl-Ketone) in a
> chemistry store in order to use it for building my models.
Mek-Pak is anything but methylethylketone. The latest conncoction is
useless, suggest you buy some Plastic Weld, that does most things quite
well.
John.
Nigel Cheffers-Heard
Having been a litho printer at one point in my yoof, I can assure you that
MEK removes ink from aluminium litho plates without any damage to the plates
whatever.
More pragmatically, I caution against using vinyl protective gloves with pure
MEK, as it causes them to disintegrate!
N
Kevin Carroll
"Ken Durling" <kdur...@earthlink.net> wrote in message
> Is the information contained in the MSDS's you refer to available to
> the general public
Ken:
Go to:
http://www.jtbaker.com/msds/m4628.htm
Kevin
martin.coombs
MEK PAK contains Halogenated Aliphatic Hydrocarbon.
Martin
"Bruno Baguette" <bou...@alussinan.org> wrote in message
news:3D4C0D44...@alussinan.org...
JP5844
Virtually all products must have a Material Data Safety Sheet or MSDS (Products
as benign as liquid detergents such as "Joy" and "Dawn" have MSDSs) as outlined
by federal regulations.
Most manufacturers will supply them on demand free of charge, some will charge
a nominal fee, but the manufacturers are REQUIRED BY LAW to provide them for
any product they market.
You are right, alot of the stuff under your sink will kill you unless you use
it properly (Chlorox and Ammonia come to mind)
Powdered detergent and gasoline mixed properly will yeild a product very
similiar to Napalm, and we all know what Diesel Fuel and Ammonium Nitrate (an
ingredient found in synthetic fertilizer) did to the Murrah Federal Building in
OKC.
The only way the information will be witheld on an MSDS is if the product has
some type of trademark seceret, in which case the ingredients may not be listed
by quantity, but the toxic properties, handling precautions and disposal
considerations must be listed.
Jonathan Primm
JP5...@aol.com
>Subject: Re: What contains Mek-Pak slatters ?
>From: Ken Durling kdur...@earthlink.net
>Date: 8/3/02 3:52 PM Central Daylight Time
>Message-id: <qhgokukccpo8m71jq...@4ax.com>
William Banaszak
>
> On Sat, 03 Aug 2002 17:37:40 GMT, "Trainman"
> <dom.de...@prodigy.net> wrote:
>
> >
> >Testors original plastic cement was "pure" MEK
>
> My bottle of Testor's liquid cement - bought recently - says "contains
> MEK". I don;t know if that implies that it isn't "pure" or not, but
> thought I'd report. I don't use it much, preferring more benevolent
> substances.
Perhaps that's why I can't stand to use it. It has 'always' made me
ill.
Bill Banaszak, MFE
John Bishop
<bou...@alussinan.org> writes
>Hello !
>
>I intend to bought a bottle of pure MEK (Methyl-Ethyl-Ketone) in a
>chemistry store in order to use it for building my models.
>
>Is somebody know if the Mek-Pak Slatters is only pure MEK or if it is a
>MEK in solution ? If it is a MEK in solution, do you know the percentage ?
>
>Other question, can I use pure MEK or should I put the MEK in solution ?
>
>Thanks in advance ! :-)
>
I'm responding as a Chemistry graduate of 28 years ago, who never worked
in industry....
Pure MEK is actually a chemical called 2-Butanone (boiling point 80C).
I have a bottle purchased from Eileen's Emporium, although to be honest
I use it far less often than the following two products.
Slater's Mek-Pac is stated on the bottle to be a "halogenated aliphatic
hydrocarbon". I'm confident I know the chemical involved, but for
obvious reasons I can't say which one. All I can say is that it act as
a solvent to weld styrene sheet and has a similar boiling point to
2-Butanone, but is in a different family of chemicals.
I also use Plastic weld, which is stated to be Dichloromethane (bp 40C).
It's stronger than Mek-Pac and will weld ABS plastics but can "melt"
smaller detail. I doubt if it is pure Dichloromethane 'cos it would
evaporate in the bottle.
A few boring points:
Use any of the above or others purchased from a reputable supplier for
private use, BUT NEVER USE ANY OTHER CHEMICALS, they may be
carcinogenic. I can think of two industrial solvents that are very
carcinogenic.
Do not, under any circumstance mix chemicals , including the dregs of
one product into the replacement bottle (I'm fairly certain the
constituents of Slater's product changed a couple of years ago).
These products are relatively safe, but you must read and obey the
instructions, especially do not smoke when using chemicals, use naked
lights or store in direct sunlight.
--
John Bishop
Charles Metz
Most of the foregoing is pure nonsense. As evidence, I would refer
anyone to Dr. Frank Mitchell's lecture on "The Toxicology of Modelling"
at the IPMS/USA National Convention last week, which will appear in
condensed form on Hyperscale someday soon. Frank's specialty is
occupational medicine, and he has published a well-received professional
book on that subject.
The chief risks of continually inhaling too much MEK are essentially the
same as those of continually drinking too much alcohol: transient
light-headedness and disorientation, with irreversible liver damage in
the long run. No generally-accepted scientific research indicates
long-term harmful effects from moderate exposure to either substance.
Charles Metz