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Lamasaru
Stranger
Registered: 05/14/18
Posts: 5
Last seen: 4 years, 8 months
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Is this Silicon good for self-healing injection lids?
#25203700 - 05/15/18 01:29 AM (4 years, 8 months ago) |
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Hey everyone,
I want to make some LC soon and want to make some self-healing injection lids. I am currently just waiting on some filter discs to arrive.
I have this silicon laying around Link from another project and the temperature range seems like it would be fine but I just want others opinions.
Thanks!
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Just_A_Noob
Breathing



Registered: 12/31/16
Posts: 6,809
Loc: PNW
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Re: Is this Silicon good for self-healing injection lids? [Re: Lamasaru]
#25203788 - 05/15/18 02:12 AM (4 years, 8 months ago) |
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if its 100% RTV its fine
-------------------- Wearing a mask is bad for my physical, emotional, and spiritual health.
Complying = Consent
Wide Mouth 1/2 Pint No-Pour TEK TC Teks & Links
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bodhisatta 
Smurf real estate agent


Registered: 05/01/13
Posts: 61,818
Loc: Milky way
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Re: Is this Silicon good for self-healing injection lids? [Re: Just_A_Noob] 1
#25203857 - 05/15/18 02:32 AM (4 years, 8 months ago) |
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Quote:
bodhisatta said:
Quote:
RogerRabbit said:
Quote:
Willy Wonka said: Just make sure you use the red automotive RTV because it is rated for higher temps. A PC gets up there in temp and I have had other RTVs fail.
Not correct. This is the biggest mistake guys make when they use silicone. RTV silicone is designed for much hotter temps than found in a pressure cooker and it doesn't cure properly, usually peeling off later.
Simply use regular silicone, not the high temp RTV. Clear silicone is good for up to 300F, which is well below a pressure cooker temp. You could also put micropore tape over the inoculation holes and simply cover the wound with another piece of micropore tape after injecting. RR
All silicone is rtv if it smells like vinegar. The stuff marketed as rtv is usually automotive application. Its silicone with additives to make it take >300F or be more brittle (gasket material)
Kitchen and bath 100% silicone (avoid acrylic) is going to dry more flexible so the injection port sticks to lids longer both metal and Plastic. And can take more needle pokes before needing replacement.
Quote:
RogerRabbit said: Most guys who have used RTV have had it peel off. Use regular clear silicone. It's rated to higher than a pressure cooker goes and remains flexible and attached to the lid.
Actually, people really need to get away from syringes once they move on from the brf tek. Using them is sort of like putting training wheels on a Harley. RR
Quote:
bodhisatta said: Every silicone you can buy is RTV. Ironically i would specifically avoid the silicone advertised as RTV as its usually for automotive gasket replacement it dries very brittle. I find it peels off easier and doesn't take as many needle pokes. Regular 100% silicone works great and easily handles 400F which is far higher than we need
Quote:
bodhisatta said: All silicone is high temp. And almost all silicone is RTV(room temp vulcanization)
RTV sold as RTV is usually automotive gasket maker and dried very brittle and doesn't work as well imo.
Use kitchen and bath or window and door silicone for best results. 100% silicone not siliconized, or acrylic, or latex.
Regular cheap ass silicone caulking takes 550F no problem. Hi temp is for engines.
If you're avoiding metal lids because of rust that's ridiculous lol. Just use a brillo pad to scrub them when they get bad or buy new ones every 5 years.
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36fuckin5
Alchemycologist


Registered: 08/12/03
Posts: 12,065
Loc: Diving into Mystical Territori...
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Re: Is this Silicon good for self-healing injection lids? [Re: bodhisatta]
#25203891 - 05/15/18 02:45 AM (4 years, 8 months ago) |
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Also, I like Whatman filters a lot better than filter disks for LC. You can shake the fuck out of a jar with a Whatman. I wouldn't feel comfortable doing that with a SFD.
-------------------- Redd Foxx said: If you're offended I don't give a shit and don't come see me no more.
Robert Hunter said: Believe it if you need it or leave it if you dare.
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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Lamasaru
Stranger
Registered: 05/14/18
Posts: 5
Last seen: 4 years, 8 months
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Re: Is this Silicon good for self-healing injection lids? [Re: 36fuckin5]
#25204022 - 05/15/18 03:39 AM (4 years, 8 months ago) |
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So.. if I am reading that right. The silicon I have is completely good to use correct?
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bodhisatta 
Smurf real estate agent


Registered: 05/01/13
Posts: 61,818
Loc: Milky way
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Re: Is this Silicon good for self-healing injection lids? [Re: Lamasaru]
#25204028 - 05/15/18 03:42 AM (4 years, 8 months ago) |
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