ISO: Blue (usually) Silicone? tape retainer material

[Steven M Jones]

On 08/07/2018 18:54, Chuck Guzis via cctalk wrote:
> 
> I recall that new tapes would often come with a strip of (usually blue)
> silicone-ish tape ...

Yes, I remember those. Don't have a source for exactly equivalent 
material, but you might be able to use 3-5 mil sign vinyl if you could 
get it without the adhesive on one side.


> I think I've seen it in kids' toys of the era, where various patterned
> pieces were cut from the stuff and assembled on something akin to a
> whiteboard.

The brand I'm remembering from the 1970s was Colorforms. Apparently 
still a thing. The www.colorforms.com site is alive.

--S.