The
I don't doubt that it's a thermal adhesive but it should only be applied in a thin layer to my knowledge (which ain't much) If it doesn't work out I'll probably remove the heatsink and clean it up good and try to do a better job. The stamp in the bottom cap probably won't tell you the age of the mod cause I just took one off a new 30w and it's blank.If you clean off all of the silicone, could you put a piece of thermal tape down to hold the heatsink?
1 Piece 3M 8810 80x80mm LED Thermal Adhesive Blue Cooling Tape Pad for CPU GPU | eBay
Or even use some thermal epoxy?
Arctic Silver Aata 5g Alumina Epoxy 5g Premium Ceramic Thermal Adhesive 2 Set | eBay