Adhesive Help

[pianopop9]

Can anyone help me identify what type of sheet double sided adhesive this is? It is a clear adhesive with a sheet of looped thread/knit in the middle to hold it together.

 

[TomDOT]

Lots of types of pressure-sensitive adhesive (rubber, butyl rubber, acrylic, silicones, et cetera, plus added tackifiers) - If they use FTIR any decent polymers lab should be able to ID it for you.

Alternately, look closely inside the roll for a manufacturer id