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Stabalising/vacum pot

Vic Perrin

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Alan I have never cast a blank in my life but looking at that pot it should be fine for making a big beef casserole !

:bwink:Vic:bwink:
 

Phil Dart

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I don't cast or stabilise either, but I would have though the answer would be a resounding no.
a) getting an airtight seal round the lid would be a nightmare
b) its got a thin glass lid that probably would not have enough integrity to withstand the vacuum
c) the lid had a wee steam release vent in it which would require more than a bit of bluetac to block it up
 

Kardav

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I've got to agree with Phil on this, the power of a total vacuum is far far greater than the amount of positive pressure this pot is expected to take and the whole pot, not just the lid, wouldn't be strong enough, in my opinion, assuming you could get anywhere near a total vacuum anyway.

:nonono::nonono::nonono::nonono:
 

paulm

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suck it and see.... see what I did there? :funny:

If you change the top it might (should) work. You can get neoprene sheet that is good for the seal ( BLACK NEOPRENE PLAIN SPONGE/FOAM RUBBER SHEET VARIOUS SHEET SIZES & THICKNESSES | eBay ), just stick it to the seal. Be careful with the Acrylic sheet on top as it will crack even if you don't have direct contact with the resin as it will splash when the bubbles pop etc. Get some stuff thats not acrylic (lexan I think its called) which won't be affected but costs a fortune.
 

paulm

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I did, although I went directly to the company because I didn't want the vacuum pump in the kit they had online. I also bought a catch pot which would be easy to make but I think necessary to ensure you don't suck and resin back into the pump that will knacker it
 

Terry Q

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The pot will work. The lid plastic needs to be a minimum of 1/2" thick. The drawback is not being able to see and gauge the level of foam as you are drawing a vacuum. Trust me when I say you do not want to pull that into your pump. I use a 1 gallon pickle jar as my vacuum chamber.
 

AndyC65

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Wouldn't a pressure cooker pot be better - already has a sealing lid.

For small scale stuff, has anyone looked at a Kilner jar type set-up with a vacuum (hoover) and a one way seal?

cheers,

Andy C
 

paulm

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Now that I know what I know, a big pickling jar would be perfect and you might even have one in the cupboard.
 

ZuluTiming

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The vacuum pressure is not bigger than the atmospheric pressure, so no need for a strong chamber. Some people do a two stage vacuum (few pumps in a row) which I think would do more negative pressure than atmospheric pressure, but I am not that sure.
Anyway, for pen turner with one pump, a glass jar is OK. I've been told, so I used one few times already. Maybe I was just lucky?
 

Shaver

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I think that pot ie 3mm thick. Will probably be a pressure cooker lower half, these 'stock pots' are only 1mm or so, apart from the encapsulated base. Reckon if you used one for a vacuum chamber it would implode. Pick up an old pressure pressure cooker at a flea market, or boot sale for a few shekels. Modern ones are a lot lighter, so the older the better.
 

Jim

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I used to work for a company that made the pickle jars .. Had i known then eh .. :rolling:
 

Penpal

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Turn tex has run the gammut of containers,seals worthy of note the way he houses his containers following a disaster in the early days he also recommends caution using Corian failures are dreadful to be avoided.

Peter.:thumbs::thumbs:
 
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