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09-06-2022, 02:45 PM
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#1
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Senior Member
Join Date: Nov 2020
Posts: 436
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Rain Gutter Repair: 3M 5200 vs 4000UV vs …?
Hey guys
As I‘m about to finish my paint I got to reseal the gutter.
Reading across a few threads I found 3M 5200 and 4000UV are mainly used.
Reading some TDS and infos I found the following:
5200
Cures slower (more time to flow, but could also flow too much/ fast cure available) in general stiffer/ higher modulus, available in black (carbon black reduces UV penetration).
4000
Faster cure, softer, lower modulus, only white.
I‘m a bit afraid that it‘s so soft that my gutter brackets will be pushed in too much and therefore cause cracks…
For both:
polyurethane (?) and therefore chemistry based more prone to UV degradation than SMP
Do you have long term experience? Other proposals?
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09-06-2022, 04:03 PM
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#2
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Senior Member
Join Date: Apr 2009
Posts: 453
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Both of those are sealant / adhesives. You should be using a seam sealer on the gutter. I used 3M Self-Leveling Seam Sealer, 08307. Works great, but I only did a section, so self leveling was perfect, if doing the whole gutter I'd pick the non self-leveling version since the gutter changes angles over the length and has no way to dam/catch/stop the stuff running out, at the front.
But if you are worried about UV on the products you listed, you could always paint it, I painted the 08307 I used.
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09-06-2022, 07:35 PM
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#3
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Senior Member
Join Date: Apr 2012
Location: Philadelphia, PA
Posts: 4,198
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I used Dicor self leveling sealant.
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09-07-2022, 04:50 PM
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#4
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Senior Member
Join Date: Jun 2016
Location: North of SanDiego
Posts: 233
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When filling all the gutter around your van with your preferred sealant, how full do you top off the gutter?
Like how the factory did it, or to the edge/rim of the gutter to minimize ponding when parked off level.
__________________
2003 E-350, 5.4 V8, 2x4, LSD 4.10, WeldTec 6" lift, SMB, Penthouse
2016 Beta 500 RS
2014 KTM 350 EXC-F
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09-07-2022, 05:08 PM
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#5
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Senior Member
Join Date: Nov 2020
Posts: 436
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Didn‘t think about it yet. I guess like 80% and then it‘ll automatically flow up the edges a bit.
I guess the main challenge will be to not have it flowing out upfront while still maintaining a nice „non stop“ line all around. Let‘s see.
If there‘d just be something light fixable I‘d a grab an LED lamp, but there isn‘t [emoji23]
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09-12-2022, 02:20 PM
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#6
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Senior Member
Join Date: Nov 2020
Posts: 436
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Ok, finally decided to go for the 3M Heavy Bodied Seam Sealer in white.
Epoxies are surely more UV resistant and I like the fact to have a stiffer material carrying the roof rack.
Does anyone know how much I need for the full gutter?
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09-12-2022, 05:44 PM
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#7
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Senior Member
Join Date: Apr 2009
Posts: 453
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Quote:
Originally Posted by E-350
Ok, finally decided to go for the 3M Heavy Bodied Seam Sealer in white.
Epoxies are surely more UV resistant and I like the fact to have a stiffer material carrying the roof rack.
Does anyone know how much I need for the full gutter?
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Good choice, on the 3M since it mixes as you squeeze it out of the gun, make sure to get the appropriate gun that can take the 3M sized cartridges. I ponied up for the 3M manual squeeze gun and I have to say it worked beautifully. So much nicer than any other squeeze type gun I have used in the past.
OK, I just looked up what I bought, I paid $60 not the ~$80 it's currently listed at.
https://www.amazon.com/gp/product/B002QWYG1O/
As for how many, looking at the self leveling I used, I would say 2 should do it, but that's a TOTAL guess. Maybe 3 to be on the safe side.
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09-12-2022, 08:31 PM
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#8
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Senior Member
Join Date: Nov 2020
Posts: 436
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Ok, will calculate the volume by length/ depth/ width.
For the gun… I will get a pneumatic gun and hope the 3M cartridge fits in. I‘m working for an adhesive manufacturer, but I‘m home in consumer electronics :-)
Our manual should work, the pneumatic we‘ll see ^^
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09-12-2022, 09:52 PM
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#9
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Senior Member
Join Date: Apr 2011
Location: Oregon Ciry Oregon
Posts: 2,843
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You will definitely need three tubes. I did mine and two was almost but not quite enough for the entire gutter.
__________________
Larrie
Read detailed trip reports, see photos and videos on my travel blog, luinil.com.
Current van: 2002 Ford E350 extended body camper with Colorado Camper Van pop top and Agile Offroad 4WD conversion.
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