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Old 08-13-2017, 11:11 AM   #1
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Dicor repair

How many times can you repair Dicor cracks before it is a good idea to remove the Dicor and put new on? What about using eternabond tape instead do dicor?
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Old 08-13-2017, 11:29 AM   #2
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Originally Posted by rfsod48 View Post
How many times can you repair Dicor cracks before it is a good idea to remove the Dicor and put new on? What about using eternabond tape instead do dicor?


Not sure if there is a limit but if it is starting to look bad and failing again quickly I would remove and re-caulk. Treat Eternabond as a secondary seal, if properly applied will last many years.
Slap it down on a failed caulk joint without proper preparation expect to have hidden problems develop under the tape. I am dealing with that now on mine from PO.
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Old 08-13-2017, 04:55 PM   #3
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I would use the 4" EternaBond tape on large openings such as skylights, vents, etc., and the Dicor 502LSW self-leveling sealant on smaller openings such as vent pipes, etc. Run a small bead of the Dicor along all the edges of the tape after applying! Clean all areas with Acetone before sealing.
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Old 08-13-2017, 05:04 PM   #4
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I would use the 4" EternaBond tape on large openings such as skylights, vents, etc., and the Dicor 502LSW self-leveling sealant on smaller openings such as vent pipes, etc. Run a small bead of the Dicor along all the edges of the tape after applying! Clean all areas with Acetone before sealing.


Had a conversation with the Dicor tech support and they say to clean with alcohol
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Old 08-13-2017, 05:06 PM   #5
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Had a conversation with the Dicor tech support and they say to clean with alcohol
Figures! I had a conversation with them a while back and was told that Acetone would be fine!
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Old 08-13-2017, 05:11 PM   #6
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Eternabond is a great sealer, IF you follow their procedures in the Eternabond video library.
As with most repair jobs, proper preparation is essential.
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Old 08-13-2017, 06:34 PM   #7
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I hope Eternabond by itself is the only product need on the front and rear cap seams. I just removed all the old caulk then applied the tape directly to the seams and would hate to go through anymore jobs like that for a while.
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Old 08-13-2017, 07:51 PM   #8
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I asked this question of the guy i use for most of my repairs on the things i cannot do. He says the best process is to scrape and start fresh rather than lay old sealer on top. However that is not to say you cannot lay a few layers on without issue.

I have a fiberglass roof and the original sealant was silicone. You cannot put layers on top of silicone, nothing sticks to it. Dicor is easier to work with, it will allow layering.

I have replaced most of my silicone with Dicor because it is much easier to work with, remove and reapply. I think Silicone lasts longer but a much bigger project to replace.

There is nothing wrong with sealing power of the tape. the down side possibly is the appearance of tape and the difficulty of removal if your going to reapply.
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Old 08-14-2017, 07:12 AM   #9
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Originally Posted by rfsod48 View Post
How many times can you repair Dicor cracks before it is a good idea to remove the Dicor and put new on? What about using eternabond tape instead do dicor?


Eternabond tape will not seal against silicon, so you will have to remove the old dicor before taping and eternabond recommends caulking the edges of the tape
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Old 08-14-2017, 09:47 AM   #10
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To answer your question, i believe it depends on the size of the crack and the age of the dicor. I have scraped all the dicor off my roof and reapplied new. All of the cracks in the old were superficial. They were only surface cracks, so I think that if you have small cracks, applying a bit more dicor to them is fine, but you will want to eventually scrape off the old and apply new. It actually doesn't take that long to do.
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Old 08-14-2017, 09:58 AM   #11
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Eternabond tape will not seal against silicon, so you will have to remove the old dicor before taping and eternabond recommends caulking the edges of the tape
I don't believe Dicor is silicon. Are you saying Eternabond will not stick to properly cleaned Dicor. Almost anything will stick to Dicor IMO.
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