On 06/09/2015 10:40 PM, Mark J. Blair wrote:
Hmm, the NOS 3M 777 tapes that I got off eBay have "that one" seals. Did 3M later switch to Wright Line seals? Off to google pictures of random mag taps for edutainment purposes... Boy, do I know how to have fun!
The 3M ones that I've seen are hard white plastic (not PVC or whatever Wright Line used) with a keyhole-sort of affair that allows the circle to expand.
--Chuck
