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

[J. Forster]

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
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