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Old 04-20-2020, 06:33 AM   #1
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Roof Sealing - Dicor

I checked out my trailer this weekend (what else is there to do) and noticed that the caulking (Dicor) on the roof is showing signs of minor cracking.
The trailer is a 2012 with original seams and Dicor.

Can I apply self-levelling Dicor directly over the existing or does the existing have to be removed?

much appreciated.
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Old 04-20-2020, 06:48 AM   #2
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I've put it over the top of the old for minor repairs (after I've cleaned it well). However, the seal is only as good as the product below. Therefore, if you have a lot of it that's failed you'd be ahead to completely remove the old and lay down a new bed.

A heat gun (light heat.. any more will damage the roofing) to soften and a putty knife makes quick work out of it.

Don't forget to clean thoroughly between.
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Old 04-20-2020, 07:45 AM   #3
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Lots of talk on here lately of Eternabond tape, and lots of glowing reviews of the product. You may want to consider that as it sounds like a more permanent fix.
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Old 04-20-2020, 08:15 AM   #4
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Quote:
Originally Posted by WFD;2309502[B
]Lots of talk on here lately of Eternabond tape, and lots of glowing reviews of the product[/B]. You may want to consider that as it sounds like a more permanent fix.
Eternabond has been talked about on the forum for several years because it works, works great and has a 10yr warranty when properly applied.

https://www.eternabond.com/default.asp
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Old 04-20-2020, 08:18 AM   #5
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Originally Posted by WFD View Post
Lots of talk on here lately of Eternabond tape, and lots of glowing reviews of the product. You may want to consider that as it sounds like a more permanent fix.
And you don't have to take off the old Dicor
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Old 04-20-2020, 01:42 PM   #6
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Does Eternabond tape conform to bumps, valleys, and grooves etc. Can it be stretched or something when applied??




Thanks.
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Old 04-20-2020, 01:47 PM   #7
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Everything I have read from dicor and roof fixture manufacturers says clean well and it easily comes off take off otherwise after cleaning go over with denatured alcohol for fiberglass roof and use dicor over the bad areas. Just did my 2011 this morning. Good Luck!
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Old 04-20-2020, 02:30 PM   #8
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Does Eternabond tape conform to bumps, valleys, and grooves etc. Can it be stretched or something when applied??




Thanks.
Eternabond does have some give to it so it will conform if the anomaly is not too radical. If the bump is ragged you can shave some off with a razor blade or utility knife blade. You don't need to remove it all down to the fiberglass cap or EPDM/TPO. Use a 2" steel or hard rubber roller to roll it down and you will be fine.
Attached Files
File Type: pdf EternaBond_Installation_Instructions.pdf (134.2 KB, 48 views)
File Type: pdf general_application.pdf (88.2 KB, 28 views)
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Old 04-20-2020, 02:44 PM   #9
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Dicor comes off quite easily with a heat gun and putty knife. I highly recommend removing it before applying Eternabond. It will look much better and the Eternabond seal job will be as good as you can get it.
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Old 04-20-2020, 11:39 PM   #10
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Originally Posted by Scrapper View Post
Eternabond does have some give to it so it will conform if the anomaly is not too radical. If the bump is ragged you can shave some off with a razor blade or utility knife blade. You don't need to remove it all down to the fiberglass cap or EPDM/TPO. Use a 2" steel or hard rubber roller to roll it down and you will be fine.



Thanks, Appreciate that info.
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Old 04-21-2020, 07:21 AM   #11
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Thanks for the responses. you've given me some things to consider...Ö.still not sure what approach I'll take.
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Old 04-21-2020, 08:11 AM   #12
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When we first got our camper it was 3 years old. We were camping one rainy weekend and I found a slight drip in the middle of the living area.

After pulling one of the ceiling panels loose I found the source of the leak It was in the middle of the roof. An inspection of the roof revealed two of the roofing panels were about 1/2" apart tnd the rubber roofing was sagging in between the two.

I never did find the pin hole, but I solved that and any future issues by purchasing some Gaco Flex Liquid Roof Tape. I bought a gallon of it for around $75 and only used 1/2 of it.

https://www.roofcoatingsupply.com/Ga...AaAuE0EALw_wcB

It applies easily with a brush and has a guarantee of up to 50 years. It is also suitable for application over a rubber roof.

I applied it over that entire seam area and around every penetration of the roof, both sides and both ends. I simply covered over the Dicor which all seemed to be in good condition (After thoroughly cleaning it of course)

7 years on nary a single leak and the material is still in as good of condition as the day I applied it.
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