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Exterior silicone

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Gixxerkid3

Exterior silicone
« on: April 12, 2022, 06:57:08 pm »
Hi all. I want to do some updating /repair of the exterior silicone at random places of the coach . Any thoughts as to which type of silicone to use for best results. I could just use a generic clear exterior silicone, but am wondering what others are using.  Hopefully the attached photo is clear but those are some of the areas I need to repair.
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fandj

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Re: Exterior silicone
« Reply #1 on: April 12, 2022, 07:23:09 pm »
I have used Geocel clear.  This is an Amazon link https://www.amazon.com/Geocel-GC28100-Flex-Flexible-Clear/dp/B001FC98X2/ref=mp_s_a_1_3?crid=2D8J2OZ1T8GJ0&keywords=geocel+proflex+rv+sealant&qid=1649805417&sprefix=geoce%2Caps%2C103&sr=8-3


Silicone though popular can be very difficult to completely remove when replacement is needed.  All the sealants I am aware do not adhere well to Silicone including Silicone thus are prone to early failure.
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faiello

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Re: Exterior silicone
« Reply #2 on: April 12, 2022, 08:30:22 pm »
I use the Pro Flex clear also.
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Frank & Beth
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Gixxerkid3

Re: Exterior silicone
« Reply #3 on: April 12, 2022, 08:53:11 pm »
 I thought it might be a bit too stiff.  Used this particular one to patch a “star” shaped crack in my roof.Thanks for the info.
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CalCruiser

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Re: Exterior silicone
« Reply #4 on: April 12, 2022, 09:40:44 pm »
That clear pro-flex product is for vertical seams and joints. Use self-leveling Dicor on the roof.
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Gixxerkid3

Re: Exterior silicone
« Reply #5 on: April 12, 2022, 10:41:53 pm »
I use that too. Are you saying that the products noted above are for vertical seams and not for what I am looking for? My pic and the Amazon link above are the same part number.   Thanks
« Last Edit: April 12, 2022, 10:49:23 pm by Gixxerkid3 »
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Engineerlt

Re: Exterior silicone
« Reply #6 on: April 13, 2022, 09:01:02 am »
I used ProFlex clear for sealing the exact same location you are looking at. It worked great, and looks good.  I used some painters tape as well so I would have nice clean lines. I like it much better than silicone, seems to last longer.
Very Respectfully
Lance
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CalCruiser

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Re: Exterior silicone
« Reply #7 on: April 14, 2022, 01:39:00 am »
Quote from: Gixxerkid3 on April 12, 2022, 10:41:53 pm
I use that too. Are you saying that the products noted above are for vertical seams and not for what I am looking for? My pic and the Amazon link above are the same part number.   Thanks

Use Geocell  ProFlex on the sides. The Dicor self leveling stuff is less viscous and will run or sag. I assumed that’s what you meant about ProFlex being too stiff when you did the roof repair.
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WillLloyd

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Re: Exterior silicone
« Reply #8 on: April 14, 2022, 12:08:37 pm »
Lapseal on the roof only, and pro flex everyplace else. With some tape, some patience, and a wet soapy finger the pro flex can be made to look better than factory.
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Gixxerkid3

Re: Exterior silicone
« Reply #9 on: April 14, 2022, 12:24:50 pm »
Yes, Dicor lap on the top for sure.  I bought a tube of geocel for the sides. Getting started today. Thank goodness there are only a few spots.
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WillLloyd

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Re: Exterior silicone
« Reply #10 on: April 14, 2022, 12:51:14 pm »
I can suggest from experience that you check every single joint on that rig. Even the ones that are hidden behind the awning and the gutter spouts and places like that.  Ask me how I know
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Ron Dittmer

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Re: Exterior silicone
« Reply #11 on: April 14, 2022, 04:45:49 pm »
Ask the factory what they use.
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Gixxerkid3

Re: Exterior silicone
« Reply #12 on: April 14, 2022, 05:06:06 pm »
Good call Ron. I think somewhere in the back of my head I was thinking that; however, it did not click until you mentioned.  I guess I am just not used to asking the “Factory” such questions. 
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Ron Dittmer

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Re: Exterior silicone
« Reply #13 on: April 14, 2022, 08:20:51 pm »
Quote from: Gixxerkid3 on April 14, 2022, 05:06:06 pm
Good call Ron. I think somewhere in the back of my head I was thinking that; however, it did not click until you mentioned.  I guess I am just not used to asking the “Factory” such questions.
2o2
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jim.godfrey

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Re: Exterior silicone
« Reply #14 on: April 14, 2022, 10:30:46 pm »
I might think twice about taking the factory suggestion on this one.
On my 2020 2552  the clear silicone (?) that they used on my seams has dark spots in it that don't wash off.
Looks like mold to me.
It is not terrible yet so I have not tried to do anything about it.
The seams are all intact just looking funky.

I'll try the Geocell when the time comes.
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