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Black Foam Backing Used As Backing For Some Parallax Products Like Board Of Education — Parallax Forums

Black Foam Backing Used As Backing For Some Parallax Products Like Board Of Education

ben_r_ben_r_ Posts: 11
edited 2013-09-23 16:20 in General Discussion
Im not even sure if Parallax still uses this stuff, but years ago when I got my first Board Of Education there was a some what grippy, black, rubbery feeling foam that was stuck on the bottom of the board for both convience (keeping it from sliding around) and to protect the contacts from shorting when a student was working with the board on who knows what kind of table surface. I am wondering what that material was and where I can get it.

I found this old thread from 2000 here in the Parallax forums (LINK) but unfortunately there was only a meantion that it was a 3M products and that it could be found at Digi-Key. I was kinda hoping for a specific model/part number and possibly any more info about if there is any. Like for example, if it is no longer used on Parallax products, why not? Was something wrong with it?

Comments

  • Phil Pilgrim (PhiPi)Phil Pilgrim (PhiPi) Posts: 23,514
    edited 2013-09-23 15:21
    It was probably this stuff:

    -Phil
  • ben_r_ben_r_ Posts: 11
    edited 2013-09-23 15:27
    That does look promising. If no one else makes any other suggestions or I cant find out what they actually used Ill order some of that and give that a try. Thanks.
  • YanomaniYanomani Posts: 1,524
    edited 2013-09-23 16:20
    Does someone know about any ESD buildup concerns, that can be related to applying such a product at the surface of circuit boards, then frictioning the full assembly against any commonly available lining material or, perhaps, some kind of storage container?
    Also (since I live at the tropics), under normal usage conditions, in mild agressive environments or subjected to sweat spilling, manipulation by careless users with moisted hands, etc..., are there any concerns about salt bridges developing at the board to adhesive interface, that could compromise circuit operation, sensitivity or battery discharge?
    I've read 3M's datasheet and saw no warn at all, but many times, only actual and frequent users have a chance to notice any hazards derived from using it.

    Yanomani
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