Thanks for your comments guys!!
I appreciate it a lot. The rubber sheet is meant to be cut into a particular shape and is sealed into the heating polymer which is completely concealed using a neoprene sheet for water-proofing. The polymers are heated using braids which comes out of padding. it is at the outlet part where the braids come out , need to be sealed for salt waterproofing and has to withstand extreme pressure. these pads are used in wet suits.hence the sealing material must stick hard to the neoprene and must comply to above said specs.
cheers