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Old 09-08-2014, 10:30 AM   #1
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Best sealant for motorhome?

Just wondering if anyone can tell me which is the best sealant to use on the outside of my motorhome. Thanks.
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Old 09-08-2014, 10:34 AM   #2
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Just wondering if anyone can tell me which is the best sealant to use on the outside of my motorhome. Thanks.
Can you be a little more specific? What do you want to seal?
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Old 09-08-2014, 10:38 AM   #3
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Old 09-08-2014, 10:47 AM   #4
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Want to seal around the edge of the roof in spots.
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Old 09-08-2014, 10:50 AM   #5
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Can you be a little more specific? What do you want to seal?
What he said. There are many different things on a motorhome that use sealant. The sealant they use is often different for each application and great care should be taken to make sure you are using the correct type for the specific. To do otherwise will often result in a failure to work and require extra labor to remove the incorrect sealant you applied. Be careful!
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Old 09-08-2014, 10:57 AM   #6
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Geocel 2300 or Geocel Pro-flex.

Dr4Film ----- Richard
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Old 09-08-2014, 11:04 AM   #7
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Want to seal around the edge of the roof in spots.
Here is a product to check out to seal joints between the roof membrane and the cap or, tears etc in the membrane. I have not used it personally but have read about others who have with good success.
If you are sealing the joints in the cap itself, I have used a Marine Grade Silicone which I believe is the OEM product on my Newmar. Dig out all the old stuff, clean the groove and lay in the Silicone. Note, all Silicones are not the same so be careful which one you use.
For sealing holes in the roof or around vents etc use a product called Dicor Self Levelling Sealant.
All the above is assuming you have a Rubber Roof.

http://www.amazon.com/s/ref=nb_sb_ss...nd%2Caps%2C401
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Old 09-08-2014, 11:05 AM   #8
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Geocel 2300 or Geocel Pro-flex.



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X2. The FW factory had applied some on my MH during a visit and five years later it looked like the day it was applied.
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Old 09-08-2014, 11:47 AM   #9
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Silicone even marine grade is not recommanded on the roof, use Dicor
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Old 09-08-2014, 12:02 PM   #10
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I have heard geocel is great. The problem is we bought this coach used(2004 Monaco Diplomat 40') Th p/o loved silicone it is in about every seam,roof rails seams on body,at the door area.Some places he never ran his finger across his bead of calk,looks likes s#%^.We have just lived with it had a small roof leak on slide ,i used silicone because that is what is there that solved the leak.
Is there any way to remove it and clean it and start over? our we just stuck with it.I do not mind working but i just do not want to open a can of worms and get a project that goes on for ever. Any advice.Thanks
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Old 09-08-2014, 12:51 PM   #11
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Old 09-08-2014, 02:16 PM   #12
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I don't know the secret fix, but hopefully someone who does will chime in. I don't think anything sticks properly to old silicone. Not even more silicone. You'll need to learn how to properly and completely remove it first before you put down the right stuff.
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Old 09-08-2014, 04:25 PM   #13
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I have heard geocel is great. The problem is we bought this coach used(2004 Monaco Diplomat 40') Th p/o loved silicone it is in about every seam,roof rails seams on body,at the door area.Some places he never ran his finger across his bead of calk,looks likes s#%^.We have just lived with it had a small roof leak on slide ,i used silicone because that is what is there that solved the leak.
Is there any way to remove it and clean it and start over? our we just stuck with it.I do not mind working but i just do not want to open a can of worms and get a project that goes on for ever. Any advice.Thanks
This is what I used to remove all of the black silicone from the oak wood trim around the old NotSoCold which was removed when the Samsung RF197 residential was installed.

It worked great!

Shop Motsenbocker's Lift Off 16 oz Silicone Latex Caulk and Foam Sealant Remover at Lowes.com

Dr4Film ----- Richard
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