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Old 09-26-2014, 12:04 PM   #11
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According to Dicor the petroleum distillates are for the curing process only and dissipate once cured....

But are they a good source for info.....could be leading us to drink the kool-aid so to speak
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Old 09-26-2014, 12:07 PM   #12
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Exclamation Roof Seam Repair

I have used the ALPHA self leveling caulk. If you find a source other than your local dealer,they can't ship Alpha Caulk UPS or FED EX.

Great pictures, neatness does not count on seams, the caulk will"level" out and you will be OK.

If you seal around your TV Ant. be careful not to get the caulk too high and cover the rotating seal on the base of you antenna, if you do it will not manually turn from the inside, learned by experience.

Prevention is always better than repair!! Happy Fall Camping

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Old 09-26-2014, 12:21 PM   #13
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It doesn't appear Alpha systems 1015 sealant is readily available either. Some on Amazon but it is 25 bucks.

Dicor is 7....Any talk online says jayco engineers are saying dicor is safe...likely because the know they screwed up putting Alpha roofing on instead of what everyone else was doing...

I will have to find out myself for sure as I was going to use Dicor for mine.
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Old 09-26-2014, 01:27 PM   #14
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Originally Posted by nbhybrid View Post
According to Dicor the petroleum distillates are for the curing process only and dissipate once cured....

But are they a good source for info.....could be leading us to drink the kool-aid so to speak

That's exactly right, it dissipates quickly, that's why I felt okay using it on mine. To be fair, I only applied it over the existing sealant, none of the new Dicor touched the roof.

In the anecdote I was referring to, the customer contacted Jayco and Alpha Ply and they both allegedly told him Dicor was acceptable...

I don't hold Jayco's use of Alpha Ply against them. Sometimes changes work out well, sometimes they don't... The Alpha Ply roof still carries a 10 yr warranty separate from Jayco's 2 yr warranty.
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Old 09-26-2014, 02:57 PM   #15
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TC,
Can I ask if you have an Alpha-Ply TPO Roof or an EPDM roof membrane?

I can't exactly tell from the pic you posted, but to me it looks like it is an Alpha-Ply Roof (i.e. the "orange peel texture"). If it is Alpha-Ply, I thought I read somewhere previously on JOF that DICOR is incompatible with Alpha-Ply Roofing systems and void the warranty (post #8 on https://www.jaycoowners.com/forums/sh...ad.php?t=19360). I think the OP mentioned that he had to purchase a roof-specific sealant for the Alpha-Ply roof on his WH.
RT, my roof is Alpha-Ply. This time I only applied the Dicor over the existing caulk. However, last year I applied Dicor to touch up where the fiberglass front cap meets the roof. Kinda globbed it on thick and a lot of it made contact with the roof with no ill effects so far. For me, I think the Dicor is probably OK for touch ups, but if I was going to remove and re-do all the caulk, I'd go with the Alpha-Ply caulk.
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Old 09-27-2014, 10:59 PM   #16
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Oddly enough the local Jayco dealer did not have the Alpha Ply sealant for sale. I found it at a competing dealership that doesn't sell Jayco. Go figure...
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Old 09-29-2014, 08:41 AM   #17
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Oddly enough the local Jayco dealer did not have the Alpha Ply sealant for sale. I found it at a competing dealership that doesn't sell Jayco. Go figure...
Same here.
I've had a discussion with the chief technician at my Jayco dealer. He said he uses the std Decor on Alpha Ply. He also says the stories about the need to use something different is just an excuse for Alpha to sell more sealant. I don't know who to beiieve anymore.
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Old 09-29-2014, 08:53 AM   #18
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Same here.
I've had a discussion with the chief technician at my Jayco dealer. He said he uses the std Decor on Alpha Ply. He also says the stories about the need to use something different is just an excuse for Alpha to sell more sealant. I don't know who to beiieve anymore.

then Jayco should step up and explain it better....I didn't buy my trailer from alpha I bought it from Jayco
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Old 09-29-2014, 09:03 AM   #19
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then Jayco should step up and explain it better....I didn't buy my trailer from alpha I bought it from Jayco
One thing is for sure, the std Dicor causes the Alpha Ply membrane to swell and become loose looking. The question then becomes is there any lasting damage to the membrane? One side of the story says the swelling will disappear when the curing process is complete (one month later), and there is no lasting damage, just has a ripple appearance during the cure time.
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Old 09-29-2014, 09:03 AM   #20
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then Jayco should step up and explain it better....I didn't buy my trailer from alpha I bought it from Jayco
+1

I completely agree. It would be nice to have a definitive, correct answer. As it is, all we really have is opinion and conjecture. The primary reason Alpha Ply states that Dicor is not to be used is because it contains petroleum distillates, but apparently when pressed, they themselves say it's really a non-issue. From what I've found in other discussions on the matter, the amount of PDs in Dicor is trace and evaporates quickly enough that the roof membrane is unharmed.

Dicor sealants are just so much more readily available, it's frustrating having to go out of your way to get a super-specific, (and much more expensive) sealant...
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