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OfflineDeadPhan
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Registered: 05/05/04
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Ok. So I have like 120 mason jars easy. How many sfd's of what size should I get to cover all?
    #18890341 - 09/25/13 05:17 PM (10 years, 4 months ago)

I'm tired of replacing tyvek and polyfil.  I'm curious at the best economical route for sad amount of jars to cut into holes to cover holes on the lids. They are cheap enough to buy a set of 100 but I'd rather be economical, and as much as I can and will figure out the math if need be, just wondering if anyone with experience could throw it out there for me. :cheers:


--------------------
 


Big Gulps!  Alright!  Well,  See ya later!
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Invisible36fuckin5
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Registered: 08/11/03
Posts: 12,081
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Re: Ok. So I have like 120 mason jars easy. How many sfd's of what size should I get to cover all? [Re: DeadPhan]
    #18890386 - 09/25/13 05:26 PM (10 years, 4 months ago)

You know you don't have to replace Polyfil in lids, right?

If you're going with SFD's, either get plastic lids or use them whole. Metal lids rust out, and then you have to buy more SFDs, which aren't cheap. If you use them whole, you can just replace the lid and keep using the filter pretty much forever. I'm in this situation myself right now, and I'm gonna have to buy about 100 new SFDs.


--------------------
Redd Foxx said:
If you're offended I don't give a shit and don't come see me no more.

Pat The Bunny said:
A punk rock song won't ever change the world, but I can tell you about a couple that changed me.

bodhisatta said:
i recommend common sense and figuring it out.

These are the TEKs I use. They're all as cheap and easy as possible, just like your mom.


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Offlineretaardvark
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Registered: 12/22/12
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Re: Ok. So I have like 120 mason jars easy. How many sfd's of what size should I get to cover all? [Re: 36fuckin5]
    #18890509 - 09/25/13 05:58 PM (10 years, 4 months ago)

Quote:

36fuckin5 said:
You know you don't have to replace Polyfil in lids, right?

If you're going with SFD's, either get plastic lids or use them whole. Metal lids rust out, and then you have to buy more SFDs, which aren't cheap. If you use them whole, you can just replace the lid and keep using the filter pretty much forever. I'm in this situation myself right now, and I'm gonna have to buy about 100 new SFDs.




I applied SFDs to my first few dozen metal lids. I don't see why, when or if my lids rust out, I won't be able to take a razor, peel it off, and RTV silicone it onto another lid.

In fact, in TL's lid tek, he says that's what he does. Why would application to a metal lid be a bad idea?


Edited by retaardvark (09/25/13 05:59 PM)


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OfflineStromriderM
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Re: Ok. So I have like 120 mason jars easy. How many sfd's of what size should I get to cover all? [Re: retaardvark]
    #18890552 - 09/25/13 06:06 PM (10 years, 4 months ago)

You can cut a sfd into 6 pieces. As stated the plastic lids work best. Not only do they not rust but they are one piece and one piece lids make g2g transfers easier. Although you can glue a 2 piece metal lid together with silicone but I still prefer plastic


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InvisiblebodhisattaMDiscordReddit
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Re: Ok. So I have like 120 mason jars easy. How many sfd's of what size should I get to cover all? [Re: 36fuckin5]
    #18890584 - 09/25/13 06:14 PM (10 years, 4 months ago)

Quote:

36fuckin5 said:
You know you don't have to replace Polyfil in lids, right?

If you're going with SFD's, either get plastic lids or use them whole. Metal lids rust out, and then you have to buy more SFDs, which aren't cheap. If you use them whole, you can just replace the lid and keep using the filter pretty much forever. I'm in this situation myself right now, and I'm gonna have to buy about 100 new SFDs.




Quote:

RogerRabbit said:
Actually, drilled steel lids with synthetic filter disks can be used a hundred or more times. Simply clean the rust off with a green scouring pad.  The threads on the rings can be cleaned the same way.  Replace them when they start getting hard to get off the jars.
RR



^from earlier today^
http://www.shroomery.org/forums/showflat.php/Number/18886509#18886509

Quote:

retaardvark said:
I applied SFDs to my first few dozen metal lids. I don't see why, when or if my lids rust out, I won't be able to take a razor, peel it off, and RTV silicone it onto another lid.

In fact, in TL's lid tek, he says that's what he does. Why would application to a metal lid be a bad idea?



it's not a bad idea at all


Edited by Trusted cuItivator (09/25/13 06:16 PM)


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InvisiblePestile

Registered: 05/02/13
Posts: 875
Loc: Northern Europe
Re: Ok. So I have like 120 mason jars easy. How many sfd's of what size should I get to cover all? [Re: bodhisatta]
    #18890714 - 09/25/13 06:48 PM (10 years, 4 months ago)

I've reused cut out SFD's. It works like a charm. I just cut away the silicone.

I bought 10 125mm SFD and they make at least 8 lids per disc.


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Offlineloki44
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Registered: 08/01/13
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Re: Ok. So I have like 120 mason jars easy. How many sfd's of what size should I get to cover all? [Re: Stromrider]
    #18890720 - 09/25/13 06:50 PM (10 years, 4 months ago)

Quote:

psillyshroomer said:
You can cut a sfd into 6 pieces. As stated the plastic lids work best. Not only do they not rust but they are one piece and one piece lids make g2g transfers easier. Although you can glue a 2 piece metal lid together with silicone but I still prefer plastic





I have read that rtv silicone doesn't  work very well in plastic lids, anyway to make it stick like in metal lids?


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Offlineretaardvark
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Registered: 12/22/12
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Last seen: 4 years, 8 months
Re: Ok. So I have like 120 mason jars easy. How many sfd's of what size should I get to cover all? [Re: loki44]
    #18890798 - 09/25/13 07:12 PM (10 years, 4 months ago)

Quote:

loki44 said:
I have read that rtv silicone doesn't  work very well in plastic lids, anyway to make it stick like in metal lids?





Make sure to score/scour the area where RTV will be in contact with the lid; you know, just rough it up a bit so there are lots of little cracks for the RTV to seep into.


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Offlineloki44
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Re: Ok. So I have like 120 mason jars easy. How many sfd's of what size should I get to cover all? [Re: retaardvark]
    #18890839 - 09/25/13 07:24 PM (10 years, 4 months ago)

Quote:

retaardvark said:
Quote:

loki44 said:
I have read that rtv silicone doesn't  work very well in plastic lids, anyway to make it stick like in metal lids?





Make sure to score/scour the area where RTV will be in contact with the lid; you know, just rough it up a bit so there are lots of little cracks for the RTV to seep into.




you mean like using the tip of a scalpel/blade to scratch up the area? Any other way? I'm waiting on some sfds and red tops vacutainers I ordered to prepare some liquid culture/grain lids, never done it before


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OfflineChloroplast
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Registered: 09/16/13
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Last seen: 10 years, 4 months
Re: Ok. So I have like 120 mason jars easy. How many sfd's of what size should I get to cover all? [Re: DeadPhan]
    #18890961 - 09/25/13 08:02 PM (10 years, 4 months ago)

I have used EZ felt from a hobby store with success and they are cheap and local. But i guess others have had mixed results so ymmv


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Invisiblespaceman101
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Registered: 01/18/13
Posts: 11,726
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Re: Ok. So I have like 120 mason jars easy. How many sfd's of what size should I get to cover all? [Re: DeadPhan]
    #18891286 - 09/25/13 09:26 PM (10 years, 4 months ago)

Hey Guys I'm about to start some truffles for the first time and lately I've been having a few problems with contams so I figured sfd's would be a good thing to have since my tyvek isn't working so well now. I was wandering if anyone knew where I could get the sfd's for a good price maybe like Ebay or amazon. Any help would be greatly appreciated


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OfflineRogerRabbitM
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Re: Ok. So I have like 120 mason jars easy. How many sfd's of what size should I get to cover all? [Re: 36fuckin5]
    #18891349 - 09/25/13 09:41 PM (10 years, 4 months ago)

Quote:

36fuckin5 said:
You know you don't have to replace Polyfil in lids, right?

If you're going with SFD's, either get plastic lids or use them whole. Metal lids rust out, and then you have to buy more SFDs, which aren't cheap. If you use them whole, you can just replace the lid and keep using the filter pretty much forever. I'm in this situation myself right now, and I'm gonna have to buy about 100 new SFDs.




I agree to use the whole filter disk without cutting, but you certainly don't have to replace metal lids when they rust, nor do you replace the filter disks when they get rust stains on them. Some of my filter disks are disgustingly stained, including rust stains, but still work perfectly.  Simply wipe rusty lids and rings with a green scouring pad and keep using.

Plastic lids tend to break easily, and I've also had several pop off when shaking jars, spilling grains all over the place.  In addition, you'll get better gas exchange by having a few small holes in the lid, but using the entire surface of the filter disk rather than a small section, which I think is what you said. I just wanted to clarify that.
RR


--------------------
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OfflineFunnyLight
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Re: Ok. So I have like 120 mason jars easy. How many sfd's of what size should I get to cover all? [Re: spaceman101]
    #18891371 - 09/25/13 09:45 PM (10 years, 4 months ago)

I used a nikel to get a nice template for cutting my SFD's apart. I think I got ~7 per SFD. I think they where 100mm, whatever fits on a wide mouth jar.

Use sandpaper, or a green scouring pad to get some surface roughness going. I use sandpaper on my plastic lids. Then wipe down w/ a bit of alcohol to ensure it's good and clean. Then apply silicone and filter. Should work the same way on a metal lid.

**I'll 2nd the plastic cracking and breaking. So far this has only happened during drilling, but still a PITA.

Spaceman101:
check the sponsors.


--------------------
The most powerful drive through the ascent of man, is pleasure in his own skill.
J. Bronowski

Home of delicious "Psychedelic Nyotaimori".
Thanks Lemmingp for that.

:mushroom2::grin::mushroom2:


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InvisibleOeric McKenna
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Registered: 06/15/12
Posts: 5,318
Loc: Babylon Flag
Re: Ok. So I have like 120 mason jars easy. How many sfd's of what size should I get to cover all? [Re: FunnyLight]
    #18891936 - 09/25/13 11:32 PM (10 years, 4 months ago)

For circles, if using wide mouth filters, you'll get about 8 circles per disk using a penny to trace lines with.

120/8 = 15.
  So as crazy as it seems you'll only need about 15 to 20 disks.

I use a forstner bit for drilling smooth edges, and the lids last me about 3/4 of a year.


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Offlinemason man
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Re: Ok. So I have like 120 mason jars easy. How many sfd's of what size should I get to cover all? [Re: Oeric McKenna]
    #18892118 - 09/26/13 12:22 AM (10 years, 4 months ago)

Sorry guys, but what in the hell is a SFD???:confused: Searched but really couldn't figure it out.


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OfflinePussyFart
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Re: Ok. So I have like 120 mason jars easy. How many sfd's of what size should I get to cover all? [Re: RogerRabbit]
    #18892163 - 09/26/13 12:32 AM (10 years, 4 months ago)

Quote:

RogerRabbit said:
I agree to use the whole filter disk without cutting, but you certainly don't have to replace metal lids when they rust, nor do you replace the filter disks when they get rust stains on them. Some of my filter disks are disgustingly stained, including rust stains, but still work perfectly.  Simply wipe rusty lids and rings with a green scouring pad and keep using.
RR



:thumbup:


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OfflineStromriderM
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Re: Ok. So I have like 120 mason jars easy. How many sfd's of what size should I get to cover all? [Re: mason man]
    #18892168 - 09/26/13 12:34 AM (10 years, 4 months ago)

Synthetic filter disk


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OfflineGungGung
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Re: Ok. So I have like 120 mason jars easy. How many sfd's of what size should I get to cover all? [Re: Stromrider]
    #18892292 - 09/26/13 01:13 AM (10 years, 4 months ago)

[/url]
you Can get 12 filters per disc (wide mouth)

easy to make,with lids, a 1/4" drill bit, scissors, a quarter,silicone, a pen, and sfd's





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OfflineDeadPhan
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Re: Ok. So I have like 120 mason jars easy. How many sfd's of what size should I get to cover all? [Re: 36fuckin5]
    #18893303 - 09/26/13 09:47 AM (10 years, 4 months ago)

Quote:

36fuckin5 said:
You know you don't have to replace Polyfil in lids,




I was not aware of this.  I was told a lil while back that after not all that many cycles one should change as they deteriorate.


--------------------
 


Big Gulps!  Alright!  Well,  See ya later!
And if i claim to be a wise man, well, it surely means that i dont know!


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OfflinebEelzeBosS
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Registered: 06/15/13
Posts: 395
Last seen: 21 days, 23 hours
Re: Ok. So I have like 120 mason jars easy. How many sfd's of what size should I get to cover all? [Re: Chloroplast]
    #18893364 - 09/26/13 10:11 AM (10 years, 4 months ago)

Quote:

Chloroplast said:
I have used EZ felt from a hobby store with success and they are cheap and local. But i guess others have had mixed results so ymmv



This is what I use. Dirt cheap and Ive reused the same filters 5+ times. Some of them are pretty nasty looking with rust stains and God knows what else but no problems yet.


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