Hello. I part my labtop adaptor out to fix bad connection problem. The wires were resoldered and it works as normal. After fixed the wire I can not find the look-like silicone. The gray color stuff was between the wires. I guess the stuff works for proventing electric shocks among those components. Can you guys tell what the gray stuff is? I look like normal silicone. Also please let me know where I can get that? Here is picture. Thanks.