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Old 05-07-2014, 08:14 PM   #15
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This what many are using now, it does not contain silicone:
Geocel 28100V Pro Flex Crystal Clear RV Flexible Sealant - 10 oz. by Geocel
It does come in other colors as well.
I know this was mentioned earlier but I thought I would just do a X2!

2014 Newmar Canyon Star 3650
2011 Ford Fusion Hybrid
Bill & Sue
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Old 05-07-2014, 08:23 PM   #16
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Originally Posted by gboyle View Post
Hello all,
We recently bought a 2008 Forest River Lexington 283. It's in excellent condition however there are some maintenance items to do and one of them is to examine and repair all verticle and horizontal seams and joints that have caulking that needs to be replaced.

I'm new to owning a motorhome so I would like to get recommendations on what caulking to use and what solvents are used to clean the seams and joints before applying the new caulk. Also, are there any tools and techniques used in removing the old caulk?

Thank you for your help.

George and Susan Boyle
Burnsville, NC
Hi George & Susan,

I would also recommend using the Geocel ProFlex sealant instead of Silicone sealant. Just as good (if not better) adhesion without the issue of the silicone residue preventing future seals from sticking as well.

RVgeeks - '05 Newmar Mountain Aire 43' DP
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Old 05-07-2014, 08:49 PM   #17
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Sikkens makes several great products for sealing any issues you might have that are not related to the roof. I also use Proflex and it is also good.
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Old 05-08-2014, 10:47 PM   #18
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Location: Puyallup, WA, Frenchtown, MT, & Bend, OR
Posts: 98
Last year I replaced all the sealant where my fiberglass roof meets the front and rear caps, as well as where the roof wraps around over the side to the wall/roof seams. I used plastic disposable putty knives (Home Depot paint department), small plastic bristle brushes (Home Depot paint department), 3M Adhesive Remover (1 quart can, NAPA), and sometimes a little acetone on an old t-shirt. I worked slow and carefully with excellent results with no damage to the fiberglass roof or gelcoat/painted side seam.

It was recommended by the IRV2/Alpine Owners site that 3M sealants were used with success. I used 3M #5200 Adhesive Sealant with great results. Easy to apply, and then contour with a wet finger. A little fine water mist can help during that process. It can be painted, and I did (the body shop did). Never dries out, and maintains some elasticity.

#5200: Black or white. Fast cure or slower (24 hour)cure. Pretty much permanent.

#4200: Black or white. Fast cure or slower (24 hour) cure. Also great adhesion, but "removable" in the future.

Hope that helps.
Bruce & Donna, plus 2 Rhodesian Ridgebacks
2003 Alpine Coach 36-FDDS, WA, MT & OR
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Old 05-09-2014, 08:47 PM   #19
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Hello Ray,

Thank you for your response. This is the information I was needing. Again this forum comes through with answers and suggestions for new owners of an RV like us.
Thank you again.

George Boyle
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Old 05-10-2014, 10:18 AM   #20
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I use the EternaBond 4" tape for most applications. To seal the small openings I would recommend the Dicor 502LSW.

Joe & Annette

2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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