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OfflinePasqual
Bithead
Registered: 01/14/02
Posts: 20
Last seen: 21 years, 1 month
Tyvek filter
    #1236449 - 01/21/03 09:54 AM (21 years, 4 months ago)

Hi everybody,
filterbags and other high tech equipment use Tyvek filter to prevent loss
of water but allow air exchange.
Mushmush offers 1m^2 for about 15 Euro.
I suppose it is the same material which is used for gliders and kites.
You can get 1m^2  for about 6 Dollars or Euros.
Maybe a good alternative to seal jars or make autoclavable bags.
But how to glue or stick with bags and lids ?
Does high temperature breaks off the connection ?
greets
Pasqual :cool:


 

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OfflineJssMthrFcknChrst
Son of the LordGod Almighty

Registered: 10/12/02
Posts: 446
Loc: Vatican City
Last seen: 19 years, 9 months
Re: Tyvek filter [Re: Pasqual]
    #1236527 - 01/21/03 10:08 AM (21 years, 4 months ago)

I believe the standard technique for bonding the filter to the bag is to use some sort of epoxy. JB Weld comes to mind, but you might want to look into that further.


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Invisibledeanofmean
mycophagous

Registered: 12/06/02
Posts: 2,017
Loc: PNW
Re: Tyvek filter [Re: Pasqual]
    #1236987 - 01/21/03 12:59 PM (21 years, 4 months ago)



hi-temp silicone
at nappa :smirk:

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Invisiblez@z.com
Libertarian
Registered: 10/13/02
Posts: 2,876
Loc: ATL
Re: Tyvek filter [Re: Pasqual]
    #1237490 - 01/21/03 03:25 PM (21 years, 4 months ago)



--------------------
"Of all tyrannies, a tyranny exercised for the good of its victims may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated; but those who torment us for our own good will torment us without end, for they do so with the approval of their own conscience." - C.S. Lewis

"I would rather be exposed to the inconveniencies attending too much liberty than to those attending too small a degree of it." - Thomas Jefferson

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OfflineOn_the_Down-Low
Polyfil-ophile-Say it 3 timesfast.

Registered: 10/15/02
Posts: 401
Last seen: 19 years, 4 months
Re: Tyvek filter [Re: z@z.com]
    #1237853 - 01/21/03 05:23 PM (21 years, 4 months ago)

Will the US Postal Service ship envelopes to Europe??
I've heard of it used in kites, protective suits for painters, home 'wrap' insulation, envelopes and medical packaging.
Check out:

Tyvek.com

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InvisibleBilge
longtimenoC

Registered: 08/26/02
Posts: 1,858
Loc: USA
Re: Tyvek filter [Re: On_the_Down-Low]
    #1238562 - 01/22/03 04:03 AM (21 years, 4 months ago)

i bought Dupont Tyvek Envelopes at the local office supply store.


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Shopping for your head? Visit HeadShopFinder.com or find Online Head Shops.

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Offlinediacamomo
Children of theVortex

Registered: 06/22/02
Posts: 619
Loc: Inside My Mind
Last seen: 15 years, 5 months
Re: Tyvek filter [Re: Bilge]
    #1238689 - 01/22/03 05:07 AM (21 years, 4 months ago)

 

  I just receive 12 mts of tyvek for $5 from Into the Wind... :wink: 


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OfflineOn_the_Down-Low
Polyfil-ophile-Say it 3 timesfast.

Registered: 10/15/02
Posts: 401
Last seen: 19 years, 4 months
Re: Tyvek filter [Re: Bilge]
    #1238816 - 01/22/03 05:58 AM (21 years, 4 months ago)

Try a double layer of the envelope material.

Bonus--use the adhesive strip on the envelope to make patches to cover inoculation points!

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InvisibleBilge
longtimenoC

Registered: 08/26/02
Posts: 1,858
Loc: USA
Re: Tyvek filter [Re: On_the_Down-Low]
    #1238833 - 01/22/03 06:05 AM (21 years, 4 months ago)

so far i've had no problem with a single layer. is your concern contams or drying out? to prevent drying out, i only put a small (3/8 inch) hole in the lid. the hole is far off to one side of the lid so to inoc, i spin the lid to one side, inoc through the hole, then spin the hole back to the other side and tighten.


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Shopping for your head? Visit HeadShopFinder.com or find Online Head Shops.

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InvisibleSixTango
Mycota

Registered: 01/21/02
Posts: 1,996
Loc: A little North of Paradis...
Re: Tyvek filter [Re: Bilge]
    #1238861 - 01/22/03 06:15 AM (21 years, 4 months ago)

Or, use a two (2) hole lid, innoc in one & tape it over after innoc. 6T :tongue:


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~whiskey river rafting, hot tubbing, dirty dancing & spending money on - wild women - having fun & just gonna waste the rest~

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OfflineOn_the_Down-Low
Polyfil-ophile-Say it 3 timesfast.

Registered: 10/15/02
Posts: 401
Last seen: 19 years, 4 months
Re: Tyvek filter [Re: Bilge]
    #1238911 - 01/22/03 06:41 AM (21 years, 4 months ago)

Quote:


the hole is far off to one side of the lid so to inoc, i spin the lid to one side, inoc through the hole, then spin the hole back to the other side and tighten.




That's a great idea!! That actually works???? I didn't have a 3/8 bit. :frown:

"is your concern contams or drying out?"

Both. Thre 'dillo had 3 WBS jars that TOTALLY clumped up during PC'ing- couldn't even shake it loose. No lid- double layer Tyvek-covered in foil, PC'd for 60 mins. Never had that happen before he said.



>>>the 'spinning lid trick' eliminates a couple of steps compared to the taping though.


Fvck this site is slooooow today- timed out 3 times before I could post this. 

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InvisibleBilge
longtimenoC

Registered: 08/26/02
Posts: 1,858
Loc: USA
Re: Tyvek filter [Re: On_the_Down-Low]
    #1239013 - 01/22/03 07:24 AM (21 years, 4 months ago)

Quote:

That's a great idea!! That actually works???? I didn't have a 3/8 bit.




yes, it seems to work fine. i reached 100% colonization last week and cased last weekend. 3/8 inch is an estimate. i used a nail to punch a hole in the metal inner lid then widened it with scissors and flattened the sharp edges. a drill or a hot piece of metal should work with plastic lids.

the jars were then filled 2/3 with soaked/drained birdseed, tyvek placed on mouth of jar, lid with hole screwed onto tyvek, foil wrapped on over lid and PC'ed.

after PC, waited for pressure to equalize, shook jars and returned them to PC to cool over night. great success on the first try.


--------------------
Shopping for your head? Visit HeadShopFinder.com or find Online Head Shops.

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Offlineviscid
dikaryon
I'm a teapot

Registered: 09/23/02
Posts: 731
Loc: the mycological center of...
Last seen: 6 years, 4 months
Re: Tyvek filter [Re: On_the_Down-Low]
    #1239909 - 01/22/03 12:13 PM (21 years, 4 months ago)

Quote:

Bonus--use the adhesive strip on the envelope to make patches to cover inoculation points



i wondered if anyone else had done this. i have been doing it for months with no trouble.
super simple. i just use the tyvek and a band with no lid. the thin layer of uncolonized grain over the surface hasn't caused me any trouble, although i assume that if i were to cover some portion of the tyvek with tape i could minimize the drying....
also, don't incubate in a humid environment, as fungal organisms can colonize thru tyvek when moisture is present, and contams that grow outside move inside quickly... i feel i should also mention that if you thought you might incubate jars sideways, don't try it. at least with tyvek. the myc will come thru and get contamed, providing passage thru the tyvek for trich and the like.....
word.


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You do not know me.

You can't see me.

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Offlinediacamomo
Children of theVortex

Registered: 06/22/02
Posts: 619
Loc: Inside My Mind
Last seen: 15 years, 5 months
Re: Tyvek filter [Re: viscid]
    #1241489 - 01/23/03 01:22 AM (21 years, 4 months ago)



Do you mean, jars without lid just tyvek on the top with a band??

Rubberband???
Sterilization???
Innoculation???
That should work with any grain (popcorn)???


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InvisibleBilge
longtimenoC

Registered: 08/26/02
Posts: 1,858
Loc: USA
Re: Tyvek filter [Re: diacamomo]
    #1241504 - 01/23/03 01:35 AM (21 years, 4 months ago)

Anno's research indicated that fully exposed tyvek (no lid) tended to dry out during incubation. so i suggest a hole in the lid. the 3/8 inch hole i use seems to be about perfect.


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OfflineAnnoA
Experimenter
 User Gallery

Folding@home Statistics
Registered: 06/17/99 Happy 25th Shroomiversary!
Posts: 24,166
Loc: my room
Last seen: 28 days, 14 hours
Re: Tyvek filter [Re: Bilge]
    #1241540 - 01/23/03 02:03 AM (21 years, 4 months ago)

Yes.

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Invisiblewhiterasta
Day careobserver
 User Gallery
Registered: 04/09/02
Posts: 1,780
Loc: Oregon
Re: Tyvek filter [Re: Bilge]
    #1241599 - 01/23/03 02:37 AM (21 years, 4 months ago)

Punch your hole and put a fabric No-Stick(teflon+gauze+whatever the medical eqivilant of Tyvek is+fabric)Band-aid over the hole.Like tyvek with adhesive that you can inoculate thru with a syringe,plus a teflon exposure surface inside the jar that your substrate won't stick to.They adhere well in a P/C @17psi for 2 hrs and are cheap and already sterile.Check MAIA's thread and my update on antibiotic pretreated pads on some.Believe me this is much easier than Tyvek or poly fill.Bon Chance WR
PS I have checked and they also work on oven cooking bags,next the seal-a-meal bags!


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To old for this place

Edited by whiterasta (01/23/03 02:39 AM)

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Offlinecomario2
amateur

Registered: 09/06/02
Posts: 1,352
Loc: between places
Last seen: 11 years, 4 months
Re: Tyvek filter [Re: whiterasta]
    #1241750 - 01/23/03 04:05 AM (21 years, 4 months ago)

whiterasta, now this seems interesting, i mean using the band aids as filter patches for oven bags :shocked: 


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comario


"crusaders against emotional poverty"

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OfflineOn_the_Down-Low
Polyfil-ophile-Say it 3 timesfast.

Registered: 10/15/02
Posts: 401
Last seen: 19 years, 4 months
Re: Tyvek filter [Re: whiterasta]
    #1244023 - 01/23/03 05:52 PM (21 years, 4 months ago)

I wonder if they make them in a size large enough to cover the entire mouth of the jar.

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Offlineviscid
dikaryon
I'm a teapot

Registered: 09/23/02
Posts: 731
Loc: the mycological center of...
Last seen: 6 years, 4 months
Re: Tyvek filter [Re: On_the_Down-Low]
    #1258609 - 01/29/03 10:55 AM (21 years, 4 months ago)

i think that would be too much air exchange, possibly achieving the same drying effect....
however, as i said, the tyvek with the just the metal band (Whiplash comes to mind) has worked fine for me...the quarts are usually done in a week or less... the drying is not so significant if the temp is not too high and one uses the jars in a timely fashion.
however, i am going with the band-aids in the near future....to check out my man white rasta's method.
peace.


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You do not know me.

You can't see me.

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