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Open Roads Forum  >  Tech Issues

 > OH NO Silicon!!!

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nmhuntr

Las Cruces, NM

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Posted: 01/25/13 03:06pm Link  |  Print  |  Notify Moderator

OK I was ready to use the Dicor on my roof around the vents and along the front edge. The vents went great and I go to clean and prep the front edge and it has silicon on it.

It is all along the front and upon closer inspection it is also around the skylight. I guess the only option is to pull off all the silicon I can being careful not to cut the rubber roof and then use the eternabond tape to lap over everything??

At least I know why my antenna was not turning. The idiot used silicon around it as well up against the rotating piece

Ideas??

Thanks

* This post was edited 01/25/13 04:05pm by an administrator/moderator *


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westend

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Posted: 01/25/13 03:58pm Link  |  Print  |  Notify Moderator

I had to remove a lot of it on my TT. I used a caulk remover made by 3M (sorry threw the bottle). The remover is applied to the bead of caulk and allowed to soak. In a few hours, the caulk is wiped away. Any residual silicone can be scraped with a plastic scraper and the area cleaned with a solvent.

Be sure to get every last bit of silicone off the surface before applying the Eternabond tape, it will not stick to any surface with a trace of silicone. FWIW, I sealed my entire TT and then did a pressure test. The only areas that had no leaks where the joints covered by Eternabond. It is a great product!


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Camp, Forrest, Camp!

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Posted: 01/25/13 04:16pm Link  |  Print  |  Notify Moderator

Teach me something new. What's wrong with silicone? I thought it was the preferred material for sealing joints on RV's.


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Camp, Forrest, Camp!

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Posted: 01/25/13 04:17pm Link  |  Print  |  Notify Moderator

Teach me something new. What's wrong with silicone? I thought it was the preferred material for sealing joints on RV's.

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Posted: 01/25/13 04:32pm Link  |  Print  |  Notify Moderator

Contact 3M for the best way to remove silicone without damage.

I am still wayne_tw

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Posted: 01/25/13 04:36pm Link  |  Print  |  Notify Moderator

westend wrote:

I used a caulk remover made by 3M (sorry threw the bottle). The remover is applied to the bead of caulk and allowed to soak. In a few hours, the caulk is wiped away. Any residual silicone can be scraped with a plastic scraper and the area cleaned with a solvent.


Be very very careful with this approach. Most solvents and probably that caulk remover contain petroleum products which ruin a rubber roof!

mockturtle

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Posted: 01/25/13 04:38pm Link  |  Print  |  Notify Moderator

Silicone is good for everything but rubber, is my understanding. It is flexible, doesn't dry out and is long lasting. Yes, it's a bugger to remove.


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ktmrfs

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Posted: 01/25/13 04:39pm Link  |  Print  |  Notify Moderator

Camp, Forrest, Camp! wrote:

Teach me something new. What's wrong with silicone? I thought it was the preferred material for sealing joints on RV's.


NEVER NEVER on a membrane roof!!!! that's what Dicor or eternabond is for.

And second, most silcone's you buy at the local hardware store don't adhere well to metal or filon. the best sealers are available from RV stores or marine supply stores and are designed to adhere to the siding and plastic well. The best ones that I have found may not even be silcon based AFAIK.


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nmhuntr

Las Cruces, NM

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Posted: 01/25/13 05:00pm Link  |  Print  |  Notify Moderator

I am still wayne_tw wrote:

westend wrote:

I used a caulk remover made by 3M (sorry threw the bottle). The remover is applied to the bead of caulk and allowed to soak. In a few hours, the caulk is wiped away. Any residual silicone can be scraped with a plastic scraper and the area cleaned with a solvent.


Be very very careful with this approach. Most solvents and probably that caulk remover contain petroleum products which ruin a rubber roof!


Can I just lap the êternabond over everything after I pull as much silicon off as possible?

harold1946

Surprise Arizona

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Posted: 01/25/13 04:37pm Link  |  Print  |  Notify Moderator

Silicone sealant is not recommended because when it comes time to reseal, nothing will adhere to it, not even more silicone. It is very difficult to remove and has to be completely removed before resealing.


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