... approximatenumber of stems per square inch.These fasteners have a 37 mil white conformable acrylic foam adhesive providing goodcontact with substrates ... company provide 3M products as follows:3M Double side tape(we can die cut the tape as per customers request)1.3M VHB tape: Item number ... ,4930,4941,4945,4949,4956 and so on.2.3M PE foam tape:4004,4008,4026,4032,4052,4056,4462,4466,4965 ...