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 > OH NO Silicon!!!

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John&Joey

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

mockturtle wrote:

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.


Good answer!

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

nmhuntr wrote:

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?


That's what I would do. Silicon on a rubber roof will not stick with time. In a few years or less you'll be able to run your finger over it and it will just peel right off.

So take that into account when you use the logic of just covering it. You may want to use a wider tape to make sure you have good adhesion on the rubber roof side.

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Posted: 01/25/13 06:21pm Link  |  Print  |  Notify Moderator

'RTV'...nough said...


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Posted: 01/25/13 05:57pm 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.
It does not stick as well as Dicore, or Eternabond, and it shrinks as it dries so no, it's not the best choice. Plus re-caulking over it is all but impossible. Hence the need to remove it.

tvman44

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Posted: 01/25/13 07:05pm Link  |  Print  |  Notify Moderator

Remove as much silicone as possible because nothing sticks to silicone very well, not even more silicone.


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Posted: 01/25/13 05:15pm Link  |  Print  |  Notify Moderator

nmhuntr, I did with mine as you are talking about. I pulled all the silicone off I could. I then cleaned it with acetone, and applied a 2"
strip of eternabond over the metal hold down trim. The eternabond
essentially went fron rubber to fiberglass. It has done me well
for 2 years.
Brian

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Posted: 01/26/13 10:28am Link  |  Print  |  Notify Moderator

Is that a rubber roof? Looks like my TPO roof. I thought the rubber roof was smooth.


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nmhuntr

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Posted: 01/26/13 10:31am Link  |  Print  |  Notify Moderator

beemerphile1 wrote:

Is that a rubber roof? Looks like my TPO roof. I thought the rubber roof was smooth.


Brouchers says one piece rubber roof?


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nmhuntr

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Posted: 01/26/13 06:45am Link  |  Print  |  Notify Moderator

nmhuntr wrote:

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?


Yea the only thing this stuck to was the Dicor. No adhesion over onto the metal strip acros then end thus a crack. Should I dig into the roof after getting it prepared or just seal over it? There is a soft spot within the first 12 inches where the ladder comes over the top. Ladder anchor is solid and other area appear so as well. No sign inside of water issues either.

Thanks

nmhuntr

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Posted: 01/26/13 10:14am Link  |  Print  |  Notify Moderator

Can a piece of eternabond be used to patch a crack in the sky light? He put silicon over it but I am thinking I need 6" for the edge and can cut a short piece to place over the crack since I trust it more than silicon. It should stick to plastic right?

Thanks

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