Hi Petro, very happy to hear that worked for you! Nice clock!

Cheers,

Nick

Sent from my iPhone

> On Jun 12, 2016, at 08:13, Petro Vodopyan <[email protected]> wrote:
> 
> Hi Nicholas,
> Your approach with a warm water worked like a charm. Just in a few seconds 
> the coating becomes soft as a wet paper. Thanks you!
> 
> P.S. one photo with a clean Z573M tubes attached :)
> 
> 
> 
> 
> С уважением,
> Петр Водопьян
> +38 066 55 78 780
> 
> 2016-06-11 17:48 GMT+03:00 Instrument Resources of America 
> <[email protected]>:
>> I have personally used lacquer thinner, and a common cleaning material sold 
>> in most U.S. hardware stores called Goof Off  which is especially good at 
>> removing dried tape and label residue, magic marker, some paints, etc. I use 
>> both outdoors, with nitrile gloves. Testing of the surface to be cleaned in 
>> an inconspicuous spot is highly recommended, especially with the lacquer 
>> thinner, and the acetone.  Ira.
>> 
>>> On 6/11/2016 7:14 AM, Nicholas Stock       wrote:
>>> Hi Eric, not familiar with working with cellulose nitrate (not common in 
>>> drug discovery...:-). We tend to use MTBE in place of diethyl ether if 
>>> possible..that might be a good solvent         to try, but I'm not sure 
>>> it's as readily available to Joe Public as Acetone or IPA. Petroleum Ether 
>>> (Mineral Spirits or White Spirit as my Dad would call it...) is still used 
>>> in lacquers, paints etc, so could also be worth a try....again, bit more 
>>> hazardous to health over the long term...
>>> 
>>> Sent from my iPhone
>>> 
>>> On Jun 10, 2016, at 23:43, Tidak Ada <[email protected]> wrote:
>>> 
>>>> Hi Nicholas,
>>>> 
>>>>  
>>>> 
>>>> Am I right the material of the red coating is on base of collodion 
>>>> (cellulose nitrate) ? So the best solvent should be diethyl ether.?  
>>>> Highly flammable and known as anesthetic!
>>>> 
>>>>  
>>>> 
>>>> Eric
>>>> 
>>>>  
>>>> 
>>>>  
>>>> 
>>>> Van: [email protected] [mailto:[email protected]] 
>>>> Namens Nicholas Stock
>>>> Verzonden: vrijdag 10 juni 2016 15:51
>>>> Aan: [email protected]
>>>> Onderwerp: Re: [neonixie-l] removing red coating from tubes
>>>> 
>>>>  
>>>> 
>>>> Pedro, I use Acetone every day as a chemist...of all the solvents you can 
>>>> use, it's pretty innocuous (your body actually synthesizes small amounts 
>>>> normally)...just use it in a well ventilated area. Likewise, isopropyl 
>>>> alcohol may help you with the stubborn coatings also and is safe to use in 
>>>> a well ventilated area. If you still have some tubes with paint that won't 
>>>> come off, we can then talk about the solvents that are less friendly....:-)
>>>> 
>>>>  
>>>> 
>>>> Best of luck!
>>>> 
>>>> Sent from my iPhone
>>>> 
>>>> 
>>>> On Jun 10, 2016, at 06:21, Petro Vodopyan <[email protected]> wrote:
>>>> 
>>>> Thank you for your idea, Nick. I will try it this weekend. Previously i 
>>>> used a tank with acetone and also soaked tubes in it for a couple of 
>>>> hours. 70-80% of the coating became soft and was easily removed. But the 
>>>> remaining pieces still required manual cleaning. And another issue that 
>>>> different manufacturers/factories used different paint and it did not 
>>>> worked on some of tubes - the pain was not even softened. Also acetone is 
>>>> very toxic so i'd like to find a more "healthy" way to remove the coating.
>>>> 
>>>> Anyway i will try your idea. Thanks
>>>> 
>>>> 
>>>> 
>>>>  
>>>> 
>>>>  
>>>> 
>>>> С уважением,
>>>> 
>>>> Петр Водопьян
>>>> 
>>>> +38 066 55 78 780
>>>> 
>>>>  
>>>> 
>>>> 2016-06-10 16:13 GMT+03:00 Nicholas Stock <[email protected]>:
>>>> 
>>>> Petro, no need to use ultrasound. I've had success with just soaking the 
>>>> tubes in warm water with a little soap for 30 minutes and then using a 
>>>> knife to scrape it off....came off quite easily. The only stubborn part 
>>>> was the glass tip of the tube where I gently used a scalpel to peel it off.
>>>> 
>>>>  
>>>> 
>>>> HTH,
>>>> 
>>>>  
>>>> 
>>>> Nick
>>>> 
>>>> Sent from my iPhone
>>>> 
>>>> 
>>>> On Jun 10, 2016, at 05:51, Petro Vodopyan <[email protected]> wrote:
>>>> 
>>>> Hello,
>>>> 
>>>> Does anyone know is it possible to remove the red coating from a nixie 
>>>> tubes (e.g. Z574) via ultrasonic bath without making any damage to the 
>>>> tubes? I have a bunch of this tubes but major part of them have scratches 
>>>> on red paint. So i decided to remove the paint and now i'm looking for the 
>>>> easiest way to do it (instead of scratching each tube with knife). Before 
>>>> i buy an ultrasonic bath i would like to know will this approach work or 
>>>> not.
>>>> 
>>>> Any help is appreciated.
>>>> 
>>>> Petro
>>>> 
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> <red coating removed.png>

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