Vacuum grease…

[TheVacuumGuy]

I don't ever need to buy it again. The amounts needed are VERY small

 

[Osmosis Vanderwaal]

$41 on amazon for the Molykote 150g. I looked at mine. it's edsrtus brand and $12

 

[TheVacuumGuy]

Yeah have been ripped of a bit. It advertises 68eur but it's supplier for industry and so +tax +delivery was around 130

 

[TheVacuumGuy]

140 even

 

[Rabidreject]

Rah I made this post such a long time ago now….and iv still done nothing about this situation hah

I was literally thinking the other day I would like to get some vacuum grease - it’s just rare that I do vacuum distillations to be honest. I try and avoid it because the noise of the pump - although I suppose my water circulator isn’t so bad now.

That chapstick idea is a cracking one - or the candle idea isn’t half bad either. I actually haven't encountered my joints getting stuck so far (now that I have said that; I am almost certain it will happen though!)

I will at minimum get some ptfe tape and some chapstick though!

 

[CCL4 huffer]

honestly getting joints unstuck isnt so hard anyways just heat the joint slowly while pulling and rotating a little

 

[Rabidreject]

Yeah iv never even had it happen but I figured the grease would be good for a specific vacuum distillation. I’m gonna need all the vacuum I can get tbh and it was cheap so yeah. Justified lol

 

[CCL4 huffer]

dude how did that never happened to you are your joints magic or smt

 

[catalyst4232]

How about this

 

[Pajmon]

If you want to find out if it fits well together and nothing leaks, in many cases you can use ph paper

 

[Osmosis Vanderwaal]

I think I've only broke one buchner funnelm or 2 from a stuck joint. For me, it works best to get the joint wet and stick it in the freezer. Then the water freezes it pushes them apart. A more common problem Ive fave is breaking seperatoru funnels with a stuck petcocck. Never buy a petcocck with a glass youlk. I've never broken a ptfe one, but the glass ground valve, i've beeen through a few