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Fahts self-healing lids and bag patches


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#1 fahtster

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Posted 31 May 2006 - 03:11 AM

heres how i'm doing my lids from now on and thought i would share. :)

all you need is tyvek (postal and kite makers), tape, silicone, and a jar band.
first we start with two layers of postal tyvek (ink side up), one on top and one on the bottom with a
layer of kite makers in between the two postal. Now screwed down
tight with a band... *if you take a pliers and squeeze that lip (under the inner edge of the band that cuts into
peoples tyvek when they screw it on too tight) flush, you will stop that problem of cutting your tyvek..
or at least reduce the risk.


http://mycotopia.net...=1&d=1149062387

Next, apply duct tape like this...

http://mycotopia.net...=1&d=1149062387

The larger triangle is for silicone and the smaller is left as is for the gas
exchange hole.
I use just aquarium silicone... it's 100% silicone, so i don't know why
they call it 'aquarium'... anyways, it looks like this...

http://mycotopia.net...=1&d=1149062387

now dab a little bit on your finger and rub it into the tyvek where you plan on putting the
injection port... this will make sure that all the tyvek gets adhered to the silicon that you are about
to apply. Now apply a bunch (at least 1/8 an inches worth) onto the larger uncovered
triangle...

http://mycotopia.net...=1&d=1149062387

now this is the important part... silicone works great for self healing innoc
ports as long as it sticks. Jar lids are not good for this BUT tyvek is
excellent, as long as you push it into the tyvek.. you do this by getting
your finger really wet so that it won't stick to it and press down firmly on the
glob of silicone. try to spread the silicone out a bit to cover all the tyvek...

http://mycotopia.net...=1&d=1149062387

I disected a dry silicone glob to show how well it stuck to the tyvek....

http://mycotopia.net...=1&d=1149062387

This is what it should look like after it's dry and ready for use...

http://mycotopia.net...=1&d=1149062387

you can use these again by just replacing the bottom two pieces of tyvek OR...

*if you want a really safe lid (I would recommend it, the lid is one of the most important parts to a
successful grow) you can turn the lid over and put a second silicon patch in the same spot the top one
is... just on the bottom layer of postal tyvek. So now if something wants into your jar, it needs to go thru
two injection ports and three layers of two different kinds of tyvek.
these lids can be used over and over again... with no replacing tyvek.
:)

fahtster

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#2 fahtster

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Posted 31 May 2006 - 03:21 AM

ok, heres how i'm making self-healing bag patches...
all you need is silicone, tyvek, and duct tape.
first get a 2 x 2 in. piece of tape cut...
http://mycotopia.net...=1&d=1149063358
next cut a hole about this size in the tape with a scissors...
http://mycotopia.net...=1&d=1149063358
flip it over and apply a piece of tyvek a little bit larger than the hole you cut...
http://mycotopia.net...=1&d=1149063358
http://mycotopia.net...=1&d=1149063358
http://mycotopia.net...=1&d=1149063358
now just stick it to a bag. In my case it's an oven bag by reynolds...
http://mycotopia.net...=1&d=1149063358
now apply a generous layer of silicone and press down like mentioned above (using wet finger) so that it looks like this...
http://mycotopia.net...=1&d=1149063758
at the end of it all it should look like this...
http://mycotopia.net...=1&d=1149063358
:) fahtster

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#3 Guest_cap_*

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Posted 31 May 2006 - 03:25 AM

looks pretty easy yet reliable, fahtty
thx for sharin this great method
just curious, what length needles yer usin ?
be good

#4 hogwild

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Posted 31 May 2006 - 04:17 AM

you dont have any problems w/ stalling? It looks great except the tiny breatheable section of tyvek.

#5 fahtster

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Posted 31 May 2006 - 04:37 AM

not at all... i do rinse and dry my corn very well before i put it in the jars tho. but if i go any bigger with the hole, the corn drys out on top.

fahtster

#6 Hippie3

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Posted 31 May 2006 - 08:34 AM

i do something similar with bags
except i tape over the silicon
which i apply first.

http://mycotopia.net...18&d=1147043126



my jars are similar, too
'cept i use the lid
tyvek square for air
silicon port for injections

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#7 fahtster

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Posted 31 May 2006 - 10:19 AM

nice. :) yeah... i definately got the idea from here. just didn't want to go the the auto parts store. lol

fahtster

#8 Hippie3

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Posted 31 May 2006 - 11:18 AM

the aquarium silicon is good strong stuff,
good to know it can
take the heat too.

btw
the silicon is easy to mold/shape
with a wet paper towel or baby wipe, etc.

#9 fahtster

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Posted 31 May 2006 - 11:41 AM

btw
the silicon is easy to mold/shape
with a wet paper towel or baby wipe, etc.
__________________


nice tip. :)

#10 synth

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Posted 31 May 2006 - 11:56 AM

cool info, faht and hip.

next time i do jars [which may be soon =D],
i'll do something like this.

#11 teletrue

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Posted 01 June 2006 - 12:20 AM

Very very cool...I like the tyvek lid idea. Could you use that for a PF-style jar, or would it be strictly for a g2g transfer type situation? Could one use these lids for steam (veggie cooker in pot) sterilization of PF-style jars, or would moisture seep in?

Thanks :)

#12 hogwild

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Posted 01 June 2006 - 12:52 AM

Well if its big enough to let in air and small enough to keep the grain from drying out then looks like you hit the nail on the head.

Silicone is easy to shape w/ your fingers also if you just dip your finger in some diluted dish soap. Learned something from my construction days eh? Peace.

#13 boots420

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Posted 01 June 2006 - 03:36 AM

excellent tek. i've been lookin for some info on making my own filter patch bags. i need now look no further.:eusa_clap

#14 encapsulated

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Posted 01 June 2006 - 03:42 AM

I dont do bags or gtg for that matter but i am wondering how the bags breath b/c i dont see any tyvek left uncovered on those bags so they can breath?....Very good idea though :)

#15 Hippie3

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Posted 01 June 2006 - 08:50 AM

doesn't show in the pix
but there is a tyvek filter patch
on the bags

#16 fahtster

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Posted 01 June 2006 - 11:28 AM

hey hip, what kind of tape is that you are using? and do you let the silicone dry before applying the tape? :) teletrue... you can use them for pf jars i'm sure... I don't, I just use the standard lid and band with four holes in the lid for pf jars... these are more for whole grain quarts but i'm sure they could have plenty of applications. The imagination is endless. hog, if the air exchange part isn't big enough for ya... just make it bigger when you make the lids eh. :)

fahtster

#17 teletrue

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Posted 01 June 2006 - 01:00 PM

COOL!

#18 Hippie3

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Posted 01 June 2006 - 03:02 PM

that's shipping tape, faht.
got it at U-Haul.
i let the silicon dry enough to form a skin
before applying tape.

#19 Pedestrian

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Posted 01 June 2006 - 10:07 PM

Hey Hippie... On those jar lids you showed earlier, Is there only tyvek on one side and how large of a hole do you drill? Thx
http://mycotopia.net...86&d=1149082780

#20 Hippie3

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Posted 02 June 2006 - 06:46 AM

yes, i found that tyvek under the lid often got wet and contam'd
so it's just on top.
sits a bit raised up on a ring of silicon.

the hole is made by an icepick,
hole size = a 16p nail




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