It’s the M-D Building Products 1/2 in. x 10 ft. Black Sponge Rubber Foam Weatherstrip Tape.
Link for Home Depot is 2 or 3 posts above.
I think the weather stripping is listed as 3/8 high, but it crushes down a little bit when tightening the enclosure bolts.
wow sorry for not fully reading that was dumb on my part lol
The colored washers were only a couple of dollars.
They are on Amazon too, but more $$$.
Thx @Arch, you set the bar really high with the amazing components. Love the deck. The enclosure is a work of art.
How thick is the enclosure itself. Also could you show us how you mounted the NESE modules inside the enclosure?
where did you get the griptape? 
I was just typing your tag into a reply and then looked who posted. It was the 90’s
Killed a lot of grey matter.
Nice work.
The grip’s all yours! I was hoarding it for the right build. You are even tagged in the first post.
I also wanted to say that your stuff has really good adhesive. I was worried about some of the small and thin areas created at the edges of the deck, and they are holding up great.
Awesome stuff! Is this the correct link?
Graduated high school in the early 90’s.
Found this old pic of our back yard quarter pipe. Looks like an old Rob Roskopp deck.
Proves we couldn’t figure out how to focus a camera… or wear a helmet. But the 90’s were awesome.
oh! didnt notice the tag XD
Glad to hear you’re liking it! 
