And there are bunch of different types of materials used for O rings. Viton Nitrile Neoprene Silicone EPR PTFE Polyurethane Rubber
I would stick with silicon grease. DC-4 is good stuff. I would never use a petroleum product on an O ring or a condom. From: Ken Hohhof Sent: Tuesday, February 12, 2019 5:22 AM To: 'AnimalFarm Microwave Users Group' Subject: Re: [AFMUG] Lube for Backhaul O-rings? I’m not sure if you guys are kidding or serious, but petroleum products will probably attack the rubber. On something like a Ceragon mount where the O ring doesn’t slide over a tube but just presses against the other surface, you’d probably be better off just going without lube. Otherwise, you could use the old photographer’s trick for filling scratches – nose oil. https://en.wikipedia.org/wiki/Nasal_sebum From: AF <af-boun...@af.afmug.com> On Behalf Of Tim Withrow via AF Sent: Tuesday, February 12, 2019 5:41 AM To: af@af.afmug.com Cc: Tim Withrow <timwith...@aol.com> Subject: Re: [AFMUG] Lube for Backhaul O-rings? It's one of the things I usually forget but always have a vehicle near, so I just pulled the dipstick out and get some oil off it. -------------------------------------------------------------------------------- On Tuesday, February 12, 2019 Steve Jones <af@af.afmug.com> wrote: Vaseline is what i use on my pool On Sun, Feb 10, 2019 at 3:36 PM Bill Prince <part15...@gmail.com> wrote: Yeah. That was probably my brain aneurysm acting up. Probably conflated WD40 and DC4... -- bp part15sbs{at}gmail{dot}com On Sun, Feb 10, 2019 at 12:30 PM Ken Hohhof <af...@kwisp.com> wrote: I think you mean DC4 which is dielectric grease. The chemical composition is probably similar to DC111 but it isn’t as stiff. DC111 is basically a food grade lubricant for rubber valve rings. I suspect that plumbers grease that you buy at a hardware store is similar stuff. DC111 probably has silica added to make it thicker. If you like the single use packets instead of 5 oz tubes, I think these are probably the same thing: https://pilotshq.com/dow-corning-molykote-111-oringvalve-lubricant-6gm-dc111-6gm-p-18024.html From: AF <af-boun...@af.afmug.com> On Behalf Of Bill Prince Sent: Sunday, February 10, 2019 12:39 PM To: AnimalFarm Microwave Users Group <af@af.afmug.com> Subject: Re: [AFMUG] Lube for Backhaul O-rings? I always used DC-40. I bought it at the airplane shop. -- bp part15sbs{at}gmail{dot}com On Sun, Feb 10, 2019 at 10:12 AM Jeremy <jeremysmi...@gmail.com> wrote: Do you lube the O rings on your licensed antennas? I have seen some where they didn't and the O ring cracks apart, potentially causing water ingress. Most of the big names include a small pack with the radio or dish. I am struggling to find the exact product. I have heard people say that you can just use Vaseline, but the Internet says the petroleum will eat the rubber o ring within about a year. I see dielectric grease also being reported as being used, but it will supposedly also melt the rubber. Most are recommending Silicone Grease. The only silicone grease that I can find locally is "100% pure Silicone Grease" that is "Spark Plug Boot Grease". I figure that spark plugs boots are also rubber so this is probably the stuff, but it is also listed as being dielectric, and it contains polydimethylsiloxane.... whatever that is. Does anyone have any recommendations for what I should use to lube the O-Rings on my licensed backhauls when they do not include a tube of whatever they usually include?? Anyone have any stories about things that did not work out? -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com -------------------------------------------------------------------------------- -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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