Neoprene seat foam adhesive issue

[irk miller]

Velcro adhesive on neoprene won't work any better than what you've already tried.   3M 1300 is pretty much standard fair for neoprene.  For neoprene, you need a neoprene adhesive.  If you want something in black, then get something for wetsuit repair.

[irk miller]

I decided to try the super 77 based on online recommendations from foam/rubber manufacturer.

I've never had luck with Super 77 for much of anything except laminating vinyl and wood.  High Strength 90 works great on most seat foams, but not as good for neoprene.

[Rbabros]

I've never had luck with Super 77 for much of anything except laminating vinyl and wood.  High Strength 90 works great on most seat foams, but not as good for neoprene.

Have you tried the 3m neoprene 98 spray adhesive?

https://www.homedepot.com/p/3M-18-oz-Neoprene-98-Rubber-and-Vinyl-Spray-Adhesive-98-24/206387392

I might give it a try simply because it's mostly colorless.

[irk miller]

I've only used the 1300 for neoprene, but I've seen it recommended by vendors.   Fast Bond 100 is another one used for neoprene and various foams.  It's used in making compound cushions and furniture making. I've seen it used, but never used it myself.