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Re: Strip: Holding A Foam Seat Down

"Dual-Lock" from 3M Corporation
Like an industrial Velcro, more like interlocking mushroom heads made from plastic. It's not hook and loop.
A small piece has high holding strength.

http://www.3m.com/3M/en_US/company-us/all-3m-products/~/All-3M-Products/Adhesives-Tapes/Industrial-Adhesives-and-Tapes/Fasteners/3M-Dual-Lock-Reclosable-Fasteners/?N=5002385+8710676+8710815+8710962+8711017+8716423+3294857497&rt=r3