Hey Tony, I just looked through all of my old photos and found that I didn't actually take a single shot of using the tape. But basically...
What I have is 1/2" wide, so 12.7mm, anything around 10-15mm wide will work. I just cut small strips ca 2cm long and laid them down on the woofer cutout on each side of each screw hole and every 4-5cm in between. Then I took the seal and starting with a section that way originally correctly installed over one of the screw holes (based the woofer frame impressions) and carefully placed it in the cutout. Then I worked it down in place around the ring. The areas of the seal that were deformed sometimes needed some extra pieces of tape to get it to hold in position long enough to get the entire ring where it was supposed to be.
It can be a bit frustrating because the double-stick that I have didn't stick to the wood real well and so it came loose a few times in spots and had to be re-worked. And of course trying to press the tape onto the wood with my fingertips was even more frustrating because it stuck to my fingers better than the wood. In the end I stuck the tape to the corner end of a small flat top screwdriver, laid it down, and used the tip a second small screwdriver to get it so stay in place. Heh heh, it takes some playing around but it just has to hold long enough to be able to drop the woofer in place.
Of course I had to do all of that
before(!) soldering the wires to the woofer, because, yeah, doing it the other way around just doesn't work.
And I had to be real careful doing that and dripping the woofer carefully in place. And of course I did manage to dislodge the seal once when soldering the wires.
But in the end it worked. It sounds harder than it really was. I considered using some small drops of rubber cement to hold the seal in place but the double stick worked and I didn't really want to glue the seal down. I think that if you ever have to remove the seal later without destroying it that will be easier to do with the small pieces of tape than glue.
I have at times also just bought 2mm and 3mm thick closed cell foam from Modulor and cut new seals.
https://www.modulor.de/kunststoff/weichschaum/moosgummi-zellgummi/
Hint: if you do this using a color other than black helps. I know this because I first bought black and then realized that I only had a black Sharpie to mark the foam for cutting.
Guess how well that worked. And a white ink marker was stupid expensive.
Cheers,
James
