A thin layer of aluminum mesh (should be aluminum), both sides of adhesive 3M glue, used to adhere to the heat sink do not know whatI asked this thing who knows what can be called where to buy the donkey lips do not answer the mouth
Not silicone greaseIt's freezing, but it's very strong after solidification
The advantage is a good thermal conductivity, but also strong, do not smoke when the BGA does not degenerate, 2 dollars a tube
I do the NV graphics cards are bonded with silica gel 2 copper, the copper is a fan of the graphics card on the hinge