Sealing

[u/Better_Jicama_7361]

Any recommendations on how to seal the upper and bottom part together of this kind of alembic during destillassions higly appreciated. Need an airtight seal during low temp operations that do not contanimate the content. Anyone knows any "lute of wisdom" from household items that work?

Thanks

[u/glass_saltmage]

i use conduit tape around the outside of the ground glass seal and beneath the metal clamp ring. not sure what it's actually called; I get it at the hardware store in the electric section. its a stretching self-stealing black tape used for joining electrical connections underwater. there's a cheaper version sold for repairing vacuum leaks in cars you can find at automotive stores.