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InvisibleShroomismM
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Best silicone for plastic lids?
    #14425010 - 05/09/11 02:49 PM (12 years, 9 months ago)

Just wondering if anyone has any input or recommendations for the best silicone to be using to affix synthetic filter disks to plastic lids.
Over the years I've tried many different kinds, and I used to have a brand I really liked, but I can't remember what it was.
All the stuff I've been trying lately has not worked out very well, it tends to come loose after just a couple PC/spawn runs.

Lately I've tried:
- RTV red silicone gasket maker (high temp stuff) - this stuff seems to peel off the easiest
- Liquid Nails silicone
- Goop silicone

Are they all pretty much the same? Anyone have any recommendations?
My next step was just gonna be a giant tube of silicone II


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Offlinemickle207
Stranger Shrooms

Registered: 09/03/10
Posts: 164
Last seen: 4 years, 4 months
Re: Best silicone for plastic lids? [Re: Shroomism]
    #14425139 - 05/09/11 03:16 PM (12 years, 9 months ago)

Have you tried sanding the lids so that the RTV is able to have a better bond to the plastic?

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InvisibleDoctor_Inoc
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Registered: 04/30/11
Posts: 646
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Re: Best silicone for plastic lids? [Re: Shroomism]
    #14425156 - 05/09/11 03:20 PM (12 years, 9 months ago)

Quote:

Shroomism said:
Just wondering if anyone has any input or recommendations for the best silicone to be using to affix synthetic filter disks to plastic lids.
Over the years I've tried many different kinds, and I used to have a brand I really liked, but I can't remember what it was.
All the stuff I've been trying lately has not worked out very well, it tends to come loose after just a couple PC/spawn runs.

Lately I've tried:
- RTV red silicone gasket maker (high temp stuff) - this stuff seems to peel off the easiest
- Liquid Nails silicone
- Goop silicone

Are they all pretty much the same? Anyone have any recommendations?
My next step was just gonna be a giant tube of silicone II



RTV is the best because it's technically made to handle intense heat of 250F (15psi's) for long periods of time.  Clear is used so I can see the inoculation hole through the injection port. 

To solve the problem of your silicone peeling off, get you a piece of sand paper and scuff the surface where you are planing on applying the silicone to.  Sand papering will create grooves for the RTV to get into and it will stick better.  A giant tube regular silicone will work also.

Edited by Doctor_Inoc (05/09/11 03:34 PM)

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InvisibleShroomismM
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Registered: 02/13/00
Posts: 66,015
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Re: Best silicone for plastic lids? [Re: Doctor_Inoc]
    #14425246 - 05/09/11 03:38 PM (12 years, 9 months ago)

:facepalm3:
Can't believe  I haven't thought about sanding down the plastic to give it a better hold.
I'll give that a try next time, thanks guys


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