Originally Posted by magiccity
I just want to say thanks I am learning a lot and getting more confused all the time about what is safe to use on my neo ( hypalon). 500 zodiac.
Neoprene and hypalon are different materials (sort of.)
Hypalon material we use for tubes is a 3-ply bonded concoction. The inner layer is neoprene (a synthetic rubber, I think), the outer layer is hypalon, a much more chemically/environmentally resistant material than neoprene is. In between is a fabric mesh for dimensional stability.
Neoprene is used inside as it is more airtight than hypalon; hypalon is used because it's more durable than neoprene. And the fabric is, well, just fabric.
So, anything that can be used safely on hypalon will be fine for your boat (as the neoprene is all inside.) To be honest, I don't recall too many things you can't use on hypalon. It's pretty benign to everything except the solvents normally used to glue it.