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David and Danette
podders Helping podders - pHp
Joined: 24 Nov 2009
Online Status: Offline
Posts: 1218
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Topic: Marker Lights Posted: 02 Nov 2018 at 3:10pm |
I bought new LED marker lights for the rear of our camper. What is the best sealant to use when installing them to the fiberglass so that they will be waterproof? thank you
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2018 Vista Cruiser 19BFD (2018-
2012 Vibe 6503 (2014-2019)
2009 r-pod 171 (2009-2014)
Middle Tn
2014 Ram 1500 Quad cab
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furpod
Moderator Group - pHp
Joined: 25 Jul 2011
Location: Central KY
Online Status: Offline
Posts: 6128
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Posted: 02 Nov 2018 at 4:17pm |
I just used silicone. 25 year, anti fungal or whatever it was.. I used white, but our 2011 was white.
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mcarter
podders Helping podders - pHp
Joined: 07 Apr 2016
Location: Greenbrier, TN
Online Status: Offline
Posts: 3419
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Posted: 02 Nov 2018 at 4:30pm |
+1
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Mike Carter
2015 178
" I had the right to remain silent, I just didn't have the ability."
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Leo B
podders Helping podders - pHp
Joined: 13 Jan 2012
Location: Lyndonville, VT
Online Status: Offline
Posts: 4517
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Posted: 02 Nov 2018 at 5:14pm |
+2
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Leo & Melissa Bachand
2017 Ford F150
2021 Vista Cruiser 19 csk
Previously owned
2015 Rpod 179
2010 Rpod 171
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David and Danette
podders Helping podders - pHp
Joined: 24 Nov 2009
Online Status: Offline
Posts: 1218
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Posted: 02 Nov 2018 at 6:02pm |
OK thank you, I will look for 25 year silicone at Lowes.
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2018 Vista Cruiser 19BFD (2018-
2012 Vibe 6503 (2014-2019)
2009 r-pod 171 (2009-2014)
Middle Tn
2014 Ram 1500 Quad cab
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lostagain
Senior Member
Joined: 06 Sep 2016
Location: Quaker Hill, CT
Online Status: Offline
Posts: 2595
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Posted: 02 Nov 2018 at 6:06pm |
I'm a contrary one, thus use 3M 5200, which I used to use as a bedding compound in my Newport 30 MkII. That stuff will still be working for your grand children.
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Never leave footprints behind.
Fred & Maria Kearney
Sonoma 167RB
Our Pod 172
2019 Ford F-150 4x4 2.7 EcoBoost
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offgrid
Senior Member
Joined: 23 Jul 2018
Online Status: Offline
Posts: 5290
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Posted: 02 Nov 2018 at 6:29pm |
Just forget about ever removing it if you use 5200...
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1994 Chinook Concourse
1995 RV6A Experimental Aircraft
2015 Rpod 179 - sold
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Kevinscamps
Newbie
Joined: 14 Jul 2018
Location: Fort collins, c
Online Status: Offline
Posts: 37
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Posted: 03 Nov 2018 at 7:42pm |
Silicone is often used wrong. Silicone works fine when sealed under something sort of like a liquid rubber gasket., but is a disaster as a caulk because its adhesive properties are crappy. Best practice is butyl putty tape under the lip of the lights, then 3m 4200 as caulk around the outside. 5200 not such a good idea around a consumable like a light that might someday need replacing.
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lostagain
Senior Member
Joined: 06 Sep 2016
Location: Quaker Hill, CT
Online Status: Offline
Posts: 2595
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Posted: 03 Nov 2018 at 9:11pm |
Regarding 3M 5200, I've never had a problem getting it off fiberglass. I used it to seal the soft plastic spoiler after the dealer did a less than workman like job installing it. Because the spoiler was so soft, it lifted even off the 5200. I cleaned it off with a razor scraper, being careful not to cut into the fiberglass and cleaned up with acetone, if I recall correctly.
I agree with Kevinscamps about silicone. The butyl tape sounds like a good idea.
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Never leave footprints behind.
Fred & Maria Kearney
Sonoma 167RB
Our Pod 172
2019 Ford F-150 4x4 2.7 EcoBoost
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offgrid
Senior Member
Joined: 23 Jul 2018
Online Status: Offline
Posts: 5290
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Posted: 04 Nov 2018 at 1:47am |
+1 for butyl tape combined with mechanical fasteners. Conforms to surfaces, will compress into threads to help seal them, stays flexible, sticky and adheres very will but is not difficult to remove later when needed. Not messy. You can create little o-rings of it by rolling it into a little strings and placing it around fasteners. Some folks even make o-ring gaps by using a chamfer bit to open the edges of mounting holes a little.
If there are no solid mechanical fasteners so the sealant also has to act as an adhesive then 5200 is probably the best bet.
I'm interested in understanding the dual buytl/4200 procedure. I've always thought of both as alternative sealants so I'm curious how the combo works?
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1994 Chinook Concourse
1995 RV6A Experimental Aircraft
2015 Rpod 179 - sold
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