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 Anno
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Registered: 06/17/99
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 Homemade filter discs test and free samples! 
#516281 - 01/10/02 10:22 AM (22 years, 3 months ago) |
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I?m conducting a test using filters made of Tyvek TM foil.
I prepared 4 birdseed jars, 2 are covered with the polyfill lid like outlined in the Polyfill for Dummies tek, and 2 are covered with squares of Tyvek TM hold down by the rim of the lid.
I?m going to inoculate them with Ecuador rye grain spawn tomorow, incubate at 29?C and report on the progress in the following days.
Edited by Anno (01/16/02 09:17 AM)
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XAZIA
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Re: Homemade filter discs test [Re: Anno]
#516287 - 01/10/02 10:34 AM (22 years, 3 months ago) |
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excellent idea anno, thanx, i will be interested in the outcome.
--------------------
"Emancipate yourself from mental slavery, none but ourselves can free our minds."
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Remember, EGOISM is the beginning, the source, and the root of EVIL!
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 Jared
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Deleted [Re: Anno]
#516288 - 01/10/02 10:36 AM (22 years, 3 months ago) |
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Content Removed.
Edited by Jared (04/01/04 01:06 AM)
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luvdemshrooms
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Re: Homemade filter discs test [Re: Anno]
#516520 - 01/10/02 03:52 PM (22 years, 3 months ago) |
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Construction
One of the most popular and widely known applications of Tyvek? is in the construction industry, where it is used to increase air and water resistance, helping to lower heating and cooling costs in buildings and providing better protection against water and moisture intrusion. The unique qualities of Tyvek? help stop air flow through wall cavities; help hold out bulk water and wind-driven rain; and allow moisture vapor to escape from inside walls. The result is a more comfortable, energy-efficient building with far fewer chances for damage from degradation effects.
Helps stop air flow?
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You cannot legislate the poor into prosperity by legislating the wealthy out of prosperity. What one person receives without working for another person must work for without receiving. The government cannot give to anybody anything that the government does not first take from somebody else. When half of the people get the idea that they do not have to work because the other half is going to take care of them and when the other half gets the idea that it does no good to work because somebody else is going to get what they work for that my dear friend is the beginning of the end of any nation. You cannot multiply wealth by dividing it. ~ Adrian Rogers
Edited by luvdemshrooms (01/10/02 03:58 PM)
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luvdemshrooms
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Re: Homemade filter discs test [Re: Anno]
#516522 - 01/10/02 03:54 PM (22 years, 3 months ago) |
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Medical Packaging
An industry standard for more than 30 years, Tyvek? is used in virtually every form of sterile medical packaging. That's because Tyvek? delivers an optimum balance of bacteria penetration resistance, tear strength, puncture resistance and clean peel, as well as compatibility with existing and emerging sterilization methods.
Sounds like it doesn't let anything in, maybe including air?
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You cannot legislate the poor into prosperity by legislating the wealthy out of prosperity. What one person receives without working for another person must work for without receiving. The government cannot give to anybody anything that the government does not first take from somebody else. When half of the people get the idea that they do not have to work because the other half is going to take care of them and when the other half gets the idea that it does no good to work because somebody else is going to get what they work for that my dear friend is the beginning of the end of any nation. You cannot multiply wealth by dividing it. ~ Adrian Rogers
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luvdemshrooms
Two inch dick..but it spins!?
Registered: 11/29/01
Posts: 34,247
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Re: Homemade filter discs test [Re: Anno]
#516523 - 01/10/02 03:57 PM (22 years, 3 months ago) |
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Covers
Because Tyvek? is water resistant, yet breathable, it is ideal for car, boat and camper covers. The unique nonwoven structure of Tyvek? protects against acid rain and salt spray by holding out more water than cotton, polyester or cotton/polyester covers; however, because it is breathable, it also allows trapped moisture to escape, helping to prevent rot and mildew. What's more, because Tyvek? does not absorb water, it is significantly lighter than other covers -- even when wet. Tyvek? is a proven shield from the sun, blocking 98 percent of the sun's damaging ultraviolet (UV) rays, and it is specially engineered to keep out abrasive dirt and dust, so finishes are less likely to become dull or stained.
Allows trapped moisture to escape?
Sorry, should have made this one post. My apologies to all.
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You cannot legislate the poor into prosperity by legislating the wealthy out of prosperity. What one person receives without working for another person must work for without receiving. The government cannot give to anybody anything that the government does not first take from somebody else. When half of the people get the idea that they do not have to work because the other half is going to take care of them and when the other half gets the idea that it does no good to work because somebody else is going to get what they work for that my dear friend is the beginning of the end of any nation. You cannot multiply wealth by dividing it. ~ Adrian Rogers
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Anno
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Re: Homemade filter discs test [Re: Anno]
#516531 - 01/10/02 04:15 PM (22 years, 3 months ago) |
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I sterilized the jars with the filters on without problems. The filters withstand the 120?C of pressure cooking without visible structure change.(according to data HDPE has a melting point of 130?C).
There was a difference between the polyfill lid and the Tyvek filter jars as the Tyvek jars vere easyer to shake, leading to the conclusion that more water evaporated through the Tyvek filters than through the polyfill lids, which is reasonable if you take the active area into account, that being much greater with the Tyvek filters.
The jars were inoculated with each 1 heaped teaspoon of rye grain spawn, shaken and put into an incubator at 29?C.
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Anno
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Re: Homemade filter discs test [Re: Anno]
#518288 - 01/12/02 07:32 AM (22 years, 3 months ago) |
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After 2 days fresh growth is noticable both in polyfill filter jars and in Tyvek filter jars. I couldn?t tell if the growth is faster in any of them.
The jars will be shaken today to distribute the newly colonized kernels and put back into the incubator.
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MicronMagick
old hand
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Post deleted by users_request [Re: Anno]
#518480 - 01/12/02 12:28 PM (22 years, 3 months ago) |
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Post deleted by administrator.
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Anno
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Re: Homemade filter discs test [Re: MicronMagick]
#518534 - 01/12/02 01:44 PM (22 years, 3 months ago) |
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>can you blow threw the poly-filled hole?
Yes.
You can also blow(or better to say suck) air through Tyvek. The polyfill lid is more permeable per area, but the area of the Tyvek filter is bigger.
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CLuB99
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Re: Homemade filter discs test [Re: Anno]
#518696 - 01/12/02 05:37 PM (22 years, 3 months ago) |
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anno, any info on where to buy it??
there isn't a link "buy it" on the link you provided...
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Anno
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Re: Homemade filter discs test [Re: CLuB99]
#518708 - 01/12/02 05:47 PM (22 years, 3 months ago) |
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Any store where you can get material for building or renovating your house should have it, it?s a pretty common and widely used material, sold on rolls of several hundred meters, but at least where I got it, you can buy it by the meter.
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Anno
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Re: Homemade filter discs test [Re: Anno]
#519978 - 01/14/02 12:21 AM (22 years, 3 months ago) |
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After 3.5 days into colonisation the jars look like this.
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Trail_Blazer
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 Re: Homemade filter discs test [Re: Anno]
#520150 - 01/14/02 06:11 AM (22 years, 3 months ago) |
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Anno were the rye grain spawn jars prepared multi-spore or from agar isolate? Just wondering if those four jars all have the same strain in em. 
Peace
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[green]There is a fine line between genius and insanity, I have erased this line.[/green]
Visit FSR
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Anno
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Re: Homemade filter discs test [Re: Trail_Blazer]
#520152 - 01/14/02 06:19 AM (22 years, 3 months ago) |
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Isolate. I cloned a mushroom.
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Trail_Blazer
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Re: Homemade filter discs test [Re: Anno]
#520159 - 01/14/02 06:27 AM (22 years, 3 months ago) |
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Got ya.
--------------------
[green]There is a fine line between genius and insanity, I have erased this line.[/green]
Visit FSR
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Trail_Blazer
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 Re: Homemade filter discs test [Re: Anno]
#520160 - 01/14/02 06:27 AM (22 years, 3 months ago) |
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Sorry for the double post, cat stepped on the keyboard.
--------------------
[green]There is a fine line between genius and insanity, I have erased this line.[/green]
Visit FSR
Edited by Trail_Blazer (01/14/02 06:29 AM)
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Anno
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Re: Homemade filter discs test [Re: Trail_Blazer]
#522135 - 01/16/02 07:16 AM (22 years, 3 months ago) |
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6 days after inoculation the jars are colonized.
If you look carefully you will notice, that the upper layer of the Tyvek filter jars has uncolonized, dry kernels on the top of the jar during the excessive gas exchange through the filter.
To counteract this one should make the hole in the lid smaller and thus only partially expose the filter surface.
No contamination problems were observed in jars with either kinds of filters.
All in all the test was a succes, prooving that "Tyvek house wrap" is suitable for use as an filter in preparing of grain spawn.
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World Spirit
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 Re: Homemade filter discs test [Re: Anno]
#522154 - 01/16/02 08:10 AM (22 years, 3 months ago) |
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Deleted by admin
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Compiler
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Posts: 162
Loc: USA
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Post deleted by Administrator [Re: Anno]
#522163 - 01/16/02 08:25 AM (22 years, 3 months ago) |
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--------------------
Compiler
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Anno
Experimenter
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Re: Homemade filter discs test [Re: Compiler]
#522171 - 01/16/02 08:34 AM (22 years, 3 months ago) |
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Yes, one time after 2 days.
Edited by Anno (01/16/02 08:39 AM)
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Anno
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Re: Homemade filter discs test [Re: Anno]
#522191 - 01/16/02 09:14 AM (22 years, 3 months ago) |
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For all of you who want to try out Tyvektm as a filter material, you can order a free sample and information under a toll free number.
Free DuPont "Tyvek Home Wrap" sample and Info Kit:
800-448-9835
Please make sure to report your results here for others to benefit from this "new" filter material.
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Anonymous
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Re: Homemade filter discs test [Re: Anno]
#522243 - 01/16/02 10:08 AM (22 years, 3 months ago) |
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Anno, do you know how large the free samples are?
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Anno
Experimenter
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Re: Homemade filter discs test [Re: ]
#522255 - 01/16/02 10:23 AM (22 years, 3 months ago) |
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No, I don?t.
But since this is a product presentation I assume about the site of a letter sized paper, but I?m really guessing here.
Order a free kit and tell me.
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luvdemshrooms
Two inch dick..but it spins!?
Registered: 11/29/01
Posts: 34,247
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Re: Homemade filter discs test [Re: Anno]
#522327 - 01/16/02 11:12 AM (22 years, 3 months ago) |
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Well looks like I was wr... wr... wro.... wron.... incorrect. I would have bet they wouldn't work. Oh well. Good work Anno.
--------------------
You cannot legislate the poor into prosperity by legislating the wealthy out of prosperity. What one person receives without working for another person must work for without receiving. The government cannot give to anybody anything that the government does not first take from somebody else. When half of the people get the idea that they do not have to work because the other half is going to take care of them and when the other half gets the idea that it does no good to work because somebody else is going to get what they work for that my dear friend is the beginning of the end of any nation. You cannot multiply wealth by dividing it. ~ Adrian Rogers
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Anno
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Re: Homemade filter discs test [Re: luvdemshrooms]
#523067 - 01/17/02 12:40 AM (22 years, 3 months ago) |
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Yeah, sometimes on has to try things out to be able to tell.
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Anno
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Re: Homemade filter discs test [Re: Anno]
#526706 - 01/20/02 04:02 PM (22 years, 2 months ago) |
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I wonder, has anyone ordered those free samples and is able to tell how large the sample is?
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World Spirit
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Re: Homemade filter discs test [Re: Anno]
#526714 - 01/20/02 04:09 PM (22 years, 2 months ago) |
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Deleted by admin
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Anno
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Re: Homemade filter discs test [Re: World Spirit]
#526721 - 01/20/02 04:21 PM (22 years, 2 months ago) |
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Thank you!
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felix
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Re: Homemade filter discs test [Re: Anno]
#526742 - 01/20/02 04:47 PM (22 years, 2 months ago) |
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no...thank you!
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Real botanists laugh at HPS systems, we do however use high pressure sodium in the parking lot. - artthug
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roaghor
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Re: Homemade filter discs test [Re: Anno]
#534498 - 01/28/02 10:34 PM (22 years, 2 months ago) |
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Hey anno,
We have these tyvek suits at work, they have a tyvek suit lable on them. Would these be the same thing?
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Anno
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Re: Homemade filter discs test [Re: roaghor]
#540583 - 02/04/02 07:00 PM (22 years, 2 months ago) |
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So, did anyone order the free sample?
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Phake_ld
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Re: Homemade filter discs test [Re: Anno]
#540620 - 02/04/02 07:47 PM (22 years, 2 months ago) |
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I did... I received mines today. It took about 4 day. I'm looking forward to trying it out real soon! thanks for the tip!
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Phake_ld
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Re: Homemade filter discs test [Re: ]
#540657 - 02/04/02 08:24 PM (22 years, 2 months ago) |
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Hey Boxtop, The Tyvex sample size is 8.5"x11"
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duss69
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Re: Homemade filter discs test [Re: Phake_ld]
#541408 - 02/05/02 01:46 PM (22 years, 2 months ago) |
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Lo
The other day while i was at work, i saw a big roll of "what could be tyvek" that had been left by some workmans who where there last week.
Being brave i decided to steal the big roll.
It looks like tyvek but i cant really tell because i didn't saw any real tyvek.
It is very fibrous but it has one or two holes (1/2 mm), so i decided to put double layer.
I innoculated two jars yesterday, one with a hole (1,5cm diameter) covered with little double-layer patch and one normal.
I dont have a digicam so no pics but ill post the results.
++
Duss69
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Support the FSRE
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cookiewhore
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Re: Homemade filter discs test [Re: Anno]
#541706 - 02/05/02 08:27 PM (22 years, 2 months ago) |
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this tyvek youve used... is this tyvek like for construction? cause that stuff is almost impossible to blow through. i received 40 tyvek envelopes today from priority post. they are thinner, but just as durable as the building tyvek.
i am gonna try some.
single layer
i currently use poly fill filter floss
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Anno
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Re: Homemade filter discs test [Re: cookiewhore]
#541976 - 02/06/02 12:30 AM (22 years, 2 months ago) |
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Yes, the Tyvek used was Tyvek Home Wrap.
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cookiewhore
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Re: Homemade filter discs test [Re: Anno]
#543367 - 02/07/02 06:12 AM (22 years, 2 months ago) |
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I just got my tyvek for frederial mail or whatever the hell that link in here was to get tyvek enveloppes. They are much thinner, and more permeable (suttlely) than the housewrap.
I am going to do some experiments with it myself.
I dont immagine tyvek is autoclavable??
if it is, i might use it as a/c bags and do bulk tek..
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Anno
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Re: Homemade filter discs test [Re: cookiewhore]
#543368 - 02/07/02 06:20 AM (22 years, 2 months ago) |
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Read about my experiment further up.
Tyvek melts at 130?C[266?F]
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World Spirit
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Re: Homemade filter discs test [Re: Anno]
#544499 - 02/08/02 02:25 AM (22 years, 2 months ago) |
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Deleted by admin
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Anno
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Re: Homemade filter discs test [Re: World Spirit]
#544501 - 02/08/02 02:31 AM (22 years, 2 months ago) |
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Exactly. It can?t be blown through. But you can suck some air in, try it. This should be the right stuff.
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World Spirit
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Re: Homemade filter discs test [Re: Anno]
#545710 - 02/09/02 10:55 AM (22 years, 2 months ago) |
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Deleted by admin
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flatalbert
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Re: Homemade filter discs test and free samples! [Re: Anno]
#551214 - 02/14/02 12:03 PM (22 years, 2 months ago) |
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I got my free sample from dupont today. There are 2 8x10 sheets. It is enough for about 12 jars. I can't wait. It arrived in about a week. Thanks dupont!
Peace
Flatal
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Anno
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Re: Homemade filter discs test [Re: World Spirit]
#558189 - 02/21/02 03:44 AM (22 years, 1 month ago) |
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Any results yet?
I?m using Tyvek now on regular basis, and it works great!
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Anno
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Re: Homemade filter discs test [Re: Anno]
#572886 - 03/07/02 08:25 PM (22 years, 1 month ago) |
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Any results?
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humplok4201
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Re: Homemade filter discs test [Re: Anno]
#602021 - 04/08/02 08:52 AM (22 years, 14 days ago) |
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yes anno i got some Tyvek skuares from a trade, i duuno but it looks like he got it from the mail, it has stamps on it, ill give it a try and let you know
i got some money for pc and jars so ill go out today
thanks anno
pm me
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ChromeCrow
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Re: Homemade filter discs test and free samples! [Re: Anno]
#602063 - 04/08/02 10:03 AM (22 years, 14 days ago) |
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--------------------
ISO: Orissa, Malabar, z strain
Edited by ChromeCrow (04/08/02 10:16 AM)
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dimitri211
Carpal Tunnel
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Re: Homemade filter discs test and free samples! [Re: ChromeCrow]
#610232 - 04/14/02 02:21 PM (22 years, 8 days ago) |
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I do not know if someone has posted this but priority mail envelopes the large ones are made of tvek
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Anno
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Re: Homemade filter discs test and free samples! [Re: dimitri211]
#659998 - 06/03/02 04:46 AM (21 years, 10 months ago) |
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Any new results or findings?
I?ve been using tyvek at regular basis since then and I must say I?m very pleased with the results.
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 Baby_Hitler
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Re: Homemade filter discs test [Re: Anno]
#660529 - 06/03/02 11:11 AM (21 years, 10 months ago) |
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Unlimited free Tyvek:
http://supplies.usps.gov/disclaimer.htm
 EP 14
This 12 1/2" x 15 1/2" Tyvek envelope can handle large stacks of documents, books, small boxes, clothes and more.
Ordering quantity: multiples of 10
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This space for rent
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DreaMaTrix
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Re: Homemade filter discs test and free samples! [Re: Anno]
#660600 - 06/03/02 11:57 AM (21 years, 10 months ago) |
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Anno, do you re-use the tyvek?
I have tried tyvek envelopes, the only stuff I can find (unless I buy a 100m roll).
The envelopes were hard to find. Anyway, I had a few jars with bacterial contam. I soaked the tyvek in a water/bleach solution, and re-used it with good results.
The one thing I have found with the paper tyvek is, if you hold it up to the light, where its been on the jar it seems thinner. I don't know if this is where the jar has reached temperatures more than the tyvek can handle, so beware when re-using!
It works well, no complaints here 
Good luck
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"We are the one's we have been waiting for" - Hopi saying
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di11rod
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 not so good for me [Re: Baby_Hitler]
#660952 - 06/03/02 03:54 PM (21 years, 10 months ago) |
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I thought I posted a reply to this thread earlier before I left work, but it's not here. hmm.
I had previously ordered that Tyvek Homewrap demo kit. I think that stuff doesn't allow enough air exchange. My testing left me with some gooey junk that had originally been brf and finch seed. I chucked it all. The documentation that came with it talks about how good the stuff is at keeping the cold air out of your house, so I think it's not inteded to provide air exchange.
I just picked up some fed ex mailing envelopes which appear to be the same type of material as the USPS envelopes. I'll let you know my results of this test. Going to use EQ on BRF (no finch seed).
appreciatively,
di11rod
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Anno
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Re: Homemade filter discs test and free samples! [Re: DreaMaTrix]
#661284 - 06/03/02 06:36 PM (21 years, 10 months ago) |
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>Anno, do you re-use the tyvek?
Yes. But As you said, it wears out after several uses.
I?d say I use it like 5 times, then I replace it.
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Anno
Experimenter
Registered: 06/17/99
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Re: not so good for me [Re: di11rod]
#661290 - 06/03/02 06:38 PM (21 years, 10 months ago) |
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>My testing left me with some gooey junk that had originally been brf and finch seed
What was your sterilisation method?
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lachrymose
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 Re: Homemade filter discs test and free samples! [Re: Anno]
#661993 - 06/04/02 06:11 AM (21 years, 10 months ago) |
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Have any of you ever tried good ol' 97cent coffee filters from your local grocery store?  I'm sure they're not as good as filter discs that I'm seeing a lot of or tyvek but they promote air exchange and contam filtration. In fact, I think I got the idea of using coffee filters from the shroomery a few years back. *shrug*
--------------------
--MOOHAHA.
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di11rod
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Re: not so good for me [Re: Anno]
#662431 - 06/04/02 09:49 AM (21 years, 10 months ago) |
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I had used my PC and heated the jars for about an hour.
Do you think contams were responsible?
Appreciatively,
di11rod
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Anno
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Re: not so good for me [Re: di11rod]
#662595 - 06/04/02 11:17 AM (21 years, 10 months ago) |
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>Do you think contams were responsible?
Well, contaminanants were responsible for sure.
The question is, where did they come from.
Were they in grain and survived the sterilisation? Di they came in with inoculant or air? Or did the Tyvek filters leak?
I don?t know.
In my experience with tyvek filters I?ve only had positive experience so far, tested on around 50 jars.
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DrD525
what'shappening?!
Registered: 12/30/01
Posts: 182
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Re: Homemade filter discs test and free samples! [Re: Anno]
#690470 - 06/20/02 12:16 PM (21 years, 9 months ago) |
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Hey Anno,
I'm thinkin' of using Tyvek with my next experiment. I'm planning on using a varient of the PF tek. If I were to use the Ramsys' (sp?) seal with the Tyvek, would I put the Tyvek on the top or the bottom of the lid? If I put it on the top I'd have to tape the holes right?
thanks
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Anno
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Re: Homemade filter discs test and free samples! [Re: DrD525]
#690565 - 06/20/02 01:01 PM (21 years, 9 months ago) |
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There is not really a need to use tyvek when you do PF cakes. With PF cakes the classic vermiculite seal(not the ramsey seal) has proven best, IMO.
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