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Old 05-15-2022, 09:23 PM   #1
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Check your gutter sealant!

In prep for our new CCV top I'm going to raptor liner the van roof perimeter prior to the top install.

I noticed a small gap between the gutter sealant and the roof, it didn't look like much. Some of the sealant had small cracks in it. I grabbed a screwdriver and pryed on a bad looking section. The sealant didn't put up much of a battle. I found that water had been seeping under the factory sealant for some time. My van has lived in dry Colorado it's entire life. Had we lived in a moist climate the rust would have been hidden with extensive damage.
My point being, even with a 2WD you can't see the gutter. Make a point to check yours. My van is a 2002
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Old 05-16-2022, 04:29 AM   #2
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On my 1997 E350 RB I dug every bit of that filler out after I spotted the rust. This was originally an Cali van and rehomed to AZ so it is shocking how much rust has started to develop.

I used mostly glass reinforced body filler to fill all the holes after stripping every bit of rust out.

It has been a while, but I used Por-15 rust-inhibiting paint and scratched it well where the bondo needed to go.

At the time I used elastomeric roof coating (stock metal roof) for a final coat, but it tends to bleed a little so a raptor coating might have been better.
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Old 05-16-2022, 09:51 PM   #3
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Any suggestions on how to remove the old sealant and what to replace it with?
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Old 05-17-2022, 04:56 PM   #4
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I used a screwdriver and a rubber mallet to chip out the old sealant. In the process now using a wire wheel to clean the gutter out, then epoxy primer.
I haven't decided on what sealant to go back with.
There are alot of 2 part epoxy types but they all dry in 5 to 10 minutes.
There's almost 40' of inch wide sealant to be installed. I want self leveling but enough time for it "float" around the entire gutter. One idea is to dam off a 6' section at a time and stage the project.

I'm open to any thoughts.
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Old 05-18-2022, 05:58 PM   #5
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Anybody have input on this?
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Old 05-19-2022, 08:44 AM   #6
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I used seam sealer on mine. I also had a significant hole and cracks to deal with as well. Iíll see if I still have a tube so you know which one.
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Old 05-19-2022, 08:49 AM   #7
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LineX drip rail wrap for rust.
https://r.tapatalk.com/shareLink/top...ink_source=app
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Old 05-19-2022, 01:01 PM   #8
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Thanks Vandiesel, when I did a forum search not much came up.
It appears they didn't put any sealant back and just bed lined the gutter, am I seeing that right?
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Old 05-19-2022, 03:41 PM   #9
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I stripped most of mine out twice. The first time I used Zerorust paint and Lord Fuzor seam sealer that was solvent based. I think the sealant reacted with the paint and pulled it away from the metal when it shrunk a bit. The second time I used Spraymax 2k Primer, white Industrial Rustoleum and Sikaflex 521UV. Very happy with that result.

Spraymax - https://amzn.to/39ZOtOP
Sika 521UV - https://amzn.to/3ltZMRQ
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Old 05-19-2022, 07:17 PM   #10
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Quote:
Originally Posted by Lilnuts2 View Post
Thanks Vandiesel, when I did a forum search not much came up.
It appears they didn't put any sealant back and just bed lined the gutter, am I seeing that right?

Nope. They stripped it and ground, welded, and filled with epoxy seam sealer. The last step was the thick liner and paint. Itís a relief knowing itís all fixed. My basement box was filling with water and I could not figure it out until I pulled the protective sticker.
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