
Used for gaskets and for a flap valve.The Neoprene is fairly flexible and has a Shore Durometer hardness of 60-65(A), about the same hardness as auto tires or O-rings. It’s not as hard as the of leather used for belts (80A), but much harder than the neoprene used for mouse pads (30A) tDon't know about durability yet, but looks like it will serve well.Don't understand the "adhesion" rating factor. This a plain sheet - no adhesive. I used Hylomar for gasket assembly.

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