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05-29-2012, 01:20 AM
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#1
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Montana Fan
Join Date: Apr 2009
Location: Antioch
Posts: 148
M.O.C. #9267
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Vaseline and rubber
I would be cautious about using vaseline , or any other petroleum jelly products on rubber seals. There is some disagreement, but most of the stuff I've read states that vaseline causes rubber to swell. Some o rings are synthetic and the vaseline will not bother them, but it is hard to determine the oring material unless you buy them new. Silicone grease is considered to be ok.
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05-29-2012, 02:14 AM
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#2
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Montana Fan
Join Date: Dec 2010
Location: North Port
Posts: 271
M.O.C. #10954
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Grab a tube of "Dow 33" from a paintball shop for any of your o-ring lube. Its a silicone base lube and recomened for all the high end paintball markers.
__________________
2021 Montana 3121RL w/ Cobalt Paint
2019 F-450 w/ airbags and 25k BW Companion
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05-29-2012, 02:17 AM
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#3
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Montana Master
Join Date: Sep 2010
Location: Hollister
Posts: 1,043
M.O.C. #10764
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I just had the gasket/seal replaced on my thetford toilet and the directions told us to use vasoline on the gasket/seal. I do not know if the gasket/seal is synthetic or not.
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05-29-2012, 02:27 AM
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#4
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Montana Master
Join Date: Mar 2010
Location: Land O Lakes
Posts: 2,783
M.O.C. #10246
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Quote:
quote:Originally posted by Captain Joe
I just had the gasket/seal replaced on my thetford toilet and the directions told us to use vasoline on the gasket/seal. I do not know if the gasket/seal is synthetic or not.
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If the seal you replaced was the ball gasket, the folks at Thetford told be to use silicon based grease...which we did????
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05-29-2012, 03:26 AM
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#5
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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In the old days you had to use vasoline because there really wasn't an alternative. Now days there are lots of other choices.
__________________
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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05-29-2012, 12:22 PM
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#6
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,658
M.O.C. #9969
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It the old days all they had was real rubber seals, gaskets, and O-Rings
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Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
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05-30-2012, 04:39 AM
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#7
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Montana Master
Join Date: Mar 2010
Location: Land O Lakes
Posts: 2,783
M.O.C. #10246
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Quote:
quote:Originally posted by mhs4771
It the old days all they had was real rubber seals, gaskets, and O-Rings
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That appears to be the issue...different products react differently to pretro based products...I think???
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05-31-2012, 05:59 AM
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#8
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Montana Master
Join Date: Feb 2008
Location: Hillsboro
Posts: 593
M.O.C. #8238
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We've used vasoline for years to lubricate plumbing fixtures/valves/faucets, etc. No problems. You've got to figure that we use vasoline for "body" parts, and the doc even said for dry sinuses to put a little in your nose. That said, if it was going to deteriorate rubber seals/gaskets, why the heck would the doc tell you to "stick it up your nose".....??? 
Been using it (used to anyway) for babies diaper rash, too. 
And, notice that while it says "petroleum jelly" the active ingredient is "petrolatum" not petroleum.
__________________
Terry and Patsy
Vietnam Veteran, US Navy
2017 3810
2015 GMC Sierra 4X4 3500 SRW
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05-31-2012, 06:07 AM
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#9
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Montana Master
Join Date: Feb 2008
Location: Hillsboro
Posts: 593
M.O.C. #8238
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An interesting followup to the petroleum jelly, or vaseline.
From Wikipedia.......
http://en.wikipedia.org/wiki/Petroleum_jelly
I especially like the part where Porsche recommends it for certain uses on their cars!
__________________
Terry and Patsy
Vietnam Veteran, US Navy
2017 3810
2015 GMC Sierra 4X4 3500 SRW
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