There are at least a half dozen different materials used for O rings. You do not want to use silicon grease with silicon O rings. It will dissolve them.
From: Jason McKemie via Af Sent: Friday, October 10, 2014 8:42 PM To: [email protected] Subject: Re: [AFMUG] Local source for silicon grease (Corning 4) Thanks for all the responses, can't you use DC4 for o-rings as well? On Friday, October 10, 2014, Ken Hohhof via Af <[email protected]> wrote: I think there are 3 different applications, don't mix up the products: dielectric grease for waterproofing modular jack connections: Dow Corning DC4 or equivalent grease for rubber feedhorn O-rings: Dow Corning DC111 or equivalent anti-seize for stainless hardware: more than just lithium grease, I would make sure it says something about anti-seize or never-seize or something like that on the label and also that it is intended for stainless steel. Many brands. I think I finally found some Permatex Nickel Anti-Seize at O'Reilly auto parts, after striking out at Autozone and Advance. Note the stuff with nickel dust in it stains, don't get it where you don't want it. You don't need much so I got a little tube, but the brush-top bottle might be good for applying it without getting it on your fingers. -----Original Message----- From: Adam Moffett via Af Sent: Friday, October 10, 2014 2:02 PM To: [email protected] Subject: Re: [AFMUG] Local source for silicon grease (Corning 4) Lots of good responses here. I was wondering if you meant a dielectric grease, or something to lube up your stainless parts so they don't seize, or something else? Auto parts store should have options for any of that. I bought a can of lithium grease for $2.99 at Autozone some years ago. It's the size of a peanut can. Since you only need a dab here and there on each part, I've been using that same can for 6-7 years. Any clues where I might look locally for this? I'm not having any luck. -Jason
