[ARC5] MEK, benzene, acetone for Q dope.

Geoff geoffrey at jeremy.mv.com
Mon Mar 10 15:40:50 EDT 2014 

I would expect those worry warts to exercise restraint and not believe 
everything they read from a simillar narrow minded individual.

----- Original Message ----- 
From: "Peter Gottlieb" <hpnpilot at gmail.com>
To: "Geoff" <geoffrey at jeremy.mv.com>
Cc: <jfor at quikus.com>; "ARC-5 List" <arc5 at mailman.qth.net>
Sent: Monday, March 10, 2014 2:07 PM
Subject: Re: [ARC5] MEK, benzene, acetone for Q dope.


I support your freedom to make that choice for yourself, but encourage due 
diligence for others so they can make their own informed decisions.


Peter

> On Mar 10, 2014, at 10:53 AM, "Geoff" <geoffrey at jeremy.mv.com> wrote:
>
> Some folks are also afraid of their shadow and others live in a knee 
> knocking world of "what if". They also dont contribute much of use to 
> human advancement.
>
> I seriously doubt that some casual, meaning seldom and with good 
> ventilation, exposure has resulted in a competently documented case of 
> injury.
>
>
> ----- Original Message ----- From: "Peter Gottlieb" <hpnpilot at gmail.com>
> To: <jfor at quikus.com>
> Cc: "ARC-5 List" <arc5 at mailman.qth.net>
> Sent: Monday, March 10, 2014 12:44 PM
> Subject: Re: [ARC5] MEK, benzene, acetone for Q dope.
>
>
>> You're a medical expert now?  Look up the effects, including liver 
>> damage.
>>
>>
>> Peter
>>
>>> On Mar 10, 2014, at 9:28 AM, "J. Forster" <jfor at quikus.com> wrote:
>>>
>>> Well, if what you say is true, where are the acres of dead plumbers? PVC
>>> cement and cleaner is mostly MEK. They slosh it on rags to clean joints.
>>>
>>> Or the hospitals full of boat and car body builders. MEK is used to thin
>>> epoxy in large quantities.
>>>
>>> -John
>>>
>>> ================
>>>
>>>
>>>> You cannot say for certain no harm will come from casual exposure. It 
>>>> is
>>>> simply not known, and there is tremendous variation among different
>>>> people.
>>>>
>>>>
>>>> Peter
>>>>
>>>>> On Mar 10, 2014, at 8:56 AM, "J. Forster" <jfor at quikus.com> wrote:
>>>>>
>>>>> MSDSs are for Industrial Exposure...  40 hours per week for many 
>>>>> years.
>>>>> Not for occasional, casual use.
>>>>>
>>>>> You can die from drinking water or eating carrots too.
>>>>>
>>>>> -John
>>>>>
>>>>> =====================
>>>>>
>>>>>
>>>>>
>>>>>> All,
>>>>>> Here is the Material Safety Data Sheet for the MEK. They always sound
>>>>>> scary,
>>>>>> but with the toxicity at greater than 2 gram per kilo you would have 
>>>>>> to
>>>>>> drink about 3 ounces to get close to an acute  problem. The most 
>>>>>> danger
>>>>>> is
>>>>>> it is very flammable so think like gasoline; use in a well ventilated
>>>>>> space
>>>>>> away from ignition sources. Best outside unless it is snowing. A
>>>>>> basement
>>>>>> might pose a problem if you spilled a pint bottle.
>>>>>> I am a voyeur on this site. My dad was W6FKQ and I got on your 
>>>>>> mailing
>>>>>> list
>>>>>> when I asked one member about some WW2 radio gear my dad had in the
>>>>>> attic
>>>>>> and in his rack in the basement. I have appreciated learning from all
>>>>>> of
>>>>>> you
>>>>>> about some of the gear. There are a number of pieces in the attic, 
>>>>>> some
>>>>>> new
>>>>>> in the box, and one ARC-5 (sans tubes, but I probably have them in 
>>>>>> the
>>>>>> few
>>>>>> thousand tubes he tested and saved). I plan to get to divesting this
>>>>>> gear
>>>>>> and plan to start here as I know it will find a good appreciative 
>>>>>> home.
>>>>>> I never got my ham license though my dad tried to interest me. I am a
>>>>>> chemist and could not "see" what the electrons were doing vs what I
>>>>>> mixed
>>>>>> in
>>>>>> a flask. Also, I could not make them explode.
>>>>>> Regards,
>>>>>> jim
>>>>>>
>>>>>>
>>>>>> -----Original Message-----
>>>>>> From: arc5-bounces at mailman.qth.net
>>>>>> [mailto:arc5-bounces at mailman.qth.net]
>>>>>> On
>>>>>> Behalf Of J. Forster
>>>>>> Sent: Monday, March 10, 2014 10:02 AM
>>>>>> To: Leslie Smith
>>>>>> Cc: ARC-5 List
>>>>>> Subject: Re: [ARC5] MEK, benzene, acetone for Q dope.
>>>>>>
>>>>>> If you have a jar of MEK and leave it uncapped for a day, you have an
>>>>>> empty
>>>>>> jar.
>>>>>>
>>>>>> It does not 'rust' metals. I removes all oil films, and then the 
>>>>>> metal
>>>>>> rusts.
>>>>>>
>>>>>> An occasional whiff of MEK is not hazardous, but it's stupid to stick
>>>>>> your
>>>>>> head in a tank of it's vapors. You'll probably get high, as with
>>>>>> hundreds
>>>>>> of
>>>>>> other solvents.
>>>>>>
>>>>>> -John
>>>>>>
>>>>>> =================
>>>>>>
>>>>>>
>>>>>>> An observation, but without actual experience.
>>>>>>>
>>>>>>> MEK is prone to rust ferric metals.
>>>>>>> I wouldn't breathe fumes from MEK (but I don't think any sensible
>>>>>>> person would do that).
>>>>>>> Benzene is a known carcinogen, but not liable to rust metal.
>>>>>>> Acetone should dissolve polystyrene "chips" but less hazardous than
>>>>>>> the other two.
>>>>>>>
>>>>>>>
>>>>>>> 73 de Les Smith
>>>>>>> vk2bcu at operamail.com
>>>>>>>
>>>>>>>
>>>>>>>>> On Sun, Mar 9, 2014, at 8:19, Kenneth G. Gordon wrote:
>>>>>>>>> On 8 Mar 2014 at 14:25, hwhall at compuserve.com wrote:
>>>>>>>>>
>>>>>>>>> I had done some googling on plastics when thinking about coil
>>>>>>>>> supports
>>>>>>>> and the
>>>>>>>>> polystyrene used in Q-Dope, plastic peanuts, and model airplanes
>>>>>>>>> was
>>>>>>>> about the
>>>>>>>>> most completely RF-transparent common plastic that anyone had
>>>>>>>>> reported
>>>>>>>> on.
>>>>>>>>
>>>>>>>> The "Q" dope someone here suggested to me, 1/2 pint of MEK and as
>>>>>>>> many plastic peanuts or styrofoam (same stuff, AFAIK) cups 
>>>>>>>> dissolved
>>>>>>>> in it as it will take.
>>>>>>>>
>>>>>>>> Worked absolutely prefectly for me.
>>>>>>>>
>>>>>>>> The 1/2 pint of MEK took 16 large styrofoam cups and could have 
>>>>>>>> taken
>>>>>>>> more, but as I said a while back, it was taking longer and longer 
>>>>>>>> to
>>>>>>>> completely dissolve them, so I quit and used it as was.
>>>>>>>>
>>>>>>>> Nice stuff.
>>>>>>>>
>>>>>>>> Ken W7EKB
>>>>>>>> ______________________________________________________________
>>>>>>>> ARC5 mailing list
>>>>>>>> Home: http://mailman.qth.net/mailman/listinfo/arc5
>>>>>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>>>>>> Post: mailto:ARC5 at mailman.qth.net
>>>>>>>>
>>>>>>>> This list hosted by: http://www.qsl.net Please help support this
>>>>>>>> email list: http://www.qsl.net/donate.html
>>>>>>>
>>>>>>> --
>>>>>>> http://www.fastmail.fm - A no graphics, no pop-ups email service
>>>>>>>
>>>>>>> ______________________________________________________________
>>>>>>> ARC5 mailing list
>>>>>>> Home: http://mailman.qth.net/mailman/listinfo/arc5
>>>>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>>>>> Post: mailto:ARC5 at mailman.qth.net
>>>>>>>
>>>>>>> This list hosted by: http://www.qsl.net Please help support this 
>>>>>>> email
>>>>>>> list: http://www.qsl.net/donate.html
>>>>>>
>>>>>>
>>>>>> ______________________________________________________________
>>>>>> ARC5 mailing list
>>>>>> Home: http://mailman.qth.net/mailman/listinfo/arc5
>>>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>>>> Post: mailto:ARC5 at mailman.qth.net
>>>>>>
>>>>>> This list hosted by: http://www.qsl.net
>>>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>>
>>>>>
>>>>> ______________________________________________________________
>>>>> ARC5 mailing list
>>>>> Home: http://mailman.qth.net/mailman/listinfo/arc5
>>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>>> Post: mailto:ARC5 at mailman.qth.net
>>>>>
>>>>> This list hosted by: http://www.qsl.net
>>>>> Please help support this email list: http://www.qsl.net/donate.html
>> ______________________________________________________________
>> ARC5 mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/arc5
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:ARC5 at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>>
>> -----
>> No virus found in this message.
>> Checked by AVG - www.avg.com
>> Version: 2014.0.4335 / Virus Database: 3722/7175 - Release Date: 03/10/14
>


-----
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4335 / Virus Database: 3722/7175 - Release Date: 03/10/14

More information about the ARC5 mailing list