[NFBCS] Cleaning a braille display

[Joseph C. Lininger]

Back in the days of Freedom Scientific, I had a girlfriend with a 
braille display that kept sticking. I spoke to them and they told me to 
clean it with isopropyl alcohol and a soft paper towel. Don't remember 
percentage, in the 90's though it was. 90%, 92%, something like that. 
They said that part was actually really important, that the lower 
concentrate rubbing alcohol people usually buy shouldn't be used. Water 
content or impurities I think is the issue. The high concentrate 
isopropyl alcohol evaporates extremely quickly after being exposed to 
air, so it won't build up "kill display" levels of moisture. It's 
actually used to clean other electronic components too. You do have to 
be careful, though, because Alcohol can mar certain surfaces.
Joe


On 3/16/2020 17:55, John J. Boyer via NFBCS wrote:
> I do not recommend denatured alcohol. It contains all sorts of junk. I use isopropyl alcohol that is 99 percent pure. Note that manufacurers may tell you not to
> use any liquid on the display. They use a special solvent which is not commercially available, probably because it is toxic.
> 
> John
> 
> On Mon, Mar 16, 2020 at 01:26:27PM -0500, Nancy Coffman via NFBCS wrote:
>> You may have picked up a small microfiber cloth at the Vispero booth or APH booth at convention. They also sometimes give them away at trade shows and palaces where people give away advertising swag with their logo or brand on them.
>>
>> You can buy swabs with the denatured alcohol on them in office supply stores. Just make sure what is on the swabs or get ones with nothing on them.
>>
>> Sent from my iPhone
>>
>>> On Mar 14, 2020, at 3:50 PM, Joseph C. Lininger via NFBCS <nfbcs at nfbnet.org> wrote:
>>>
>>> Sorry it took me a while to respond to this; just seeing this message.
>>>
>>> You can buy 90% alcohol in stores and pharmacies. The reason you shouldn't use cotton is the fibers will separate and possibly get stuck in your display. Use a soft lint free cloth instead; microfiber is a good choice. I've also done it with a soft paper towel in the past, but be careful if you go that route. Microfiber cloths are the ones you buy to clean, for example, a flat computer screen. Those cloths people buy to wipe down the body of their cars are also often microfiber.
>>> Joe
>>>
>>>> On 2/24/2020 09:18, Tracy Carcione via NFBCS wrote:
>>>> I want to clean my braille display.  I have found directions on the
>>>> Internet that say to use 90% isopropol alcohol, and don't use cotton
>>>> balls.  It seems to say I can get wipes in the pharmacy, but I've checked
>>>> a few pharmacies, and they only have wipes with 70% alcohol.
>>>> If I can't use cotton, and I can't use the wipes, what can I use?
>>>> Thanks.
>>>> Tracy
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