This might help. It's a shot of the sensor with the chamber flipped up.
The only thing to look for is the top right corner of the sensor in the photo. You can see two hairline thin wires. That's the TEC. Don't break these. The gasket is on the PCB. It's pretty thin. The black block is aluminium. Btw that's a QHY9 mono.
re: silicon, I have
one reply so far on QHYCCD forums.
DOW CORNING
3140 RTV COATING
There is one supplier in Adelaide which I still have to contact:
SOUTH AUSTRALIA REYNELLA, ADELAIDE
ELLSWORTH ADHESIVES AUSTRALIA
TEL: +61 8 8321 9346
3/65 MOORE ROAD
REYNELLA, ADELAIDE SOUTH AUSTRALIA 5161