I miss this thread some-how.
I really like Plastic-Dip.
I have used it on many projects.
Double dipping as already mentioned makes for great results.
And I also like the Liquid tape product .
I use it on my wiring projects.
You could probably use this to touch-up the plastic dip?
Three coats is best for this stuff.
Link:
https://plastidip.com/our-products/liquid-tape/
.