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Old 08-15-2017, 12:54 AM   #1
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Coating for my rubber roof?

Looking at Hengs rubber roof coating. Any experience. 50 dollars a gallon on amazon.
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Old 08-15-2017, 11:00 AM   #2
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Quote:
Originally Posted by jzaldivar View Post
Looking at Hengs rubber roof coating. Any experience. 50 dollars a gallon on amazon.
Not familiar with Hengs. A few years ago I used Dicor products to clean, patch, and recoat the rubber roof on my 5er. Products available at Lowe's or Home Depot, I forget which, and also available at Camping World per the links below. After you know exactly which products you need, then you might find them on Amazon to compare prices.

Parts required are:

1] Cleaner - the white coating over the black rubber membrane must be completely cleaned off so the black rubber roof is squeaky clean. This is the "hard", no fun, part of maintaining the rubber roof, but it must be done if you want the job done right.

2] Then use EDPM rubber patching materiel to patch any holes or cracks, and around vents and the AC in the roof. Dicor makes a roll of EDPM rubber membrane about 4" wide and several feet long I used for the patching. And a tube of stickum that looks like a tube of caulk for use in a grease gun but is actually a glue to seal the seams in the EDPM rubber.

3] Then the new white coating, that goes on like paint. Don't skimp, especially to fill all the cracks and crevases in the EDPM membrane around the patches.

4] Let it dry good before you crawl back up there and apply the second coat of white coating.

Here's the white coating, but realize you'll also need at least the cleaner and maybe some patching materiel:
Dicor White Rubber Roof Acrylic Coating, Gallon - Dicor RP-CRC-1 - Roof Maintenance & Repair - Camping World

Here's all the Dicor products available at Camping World. Most of these you won't need:
Dicor rubber roof products - Camping World

I have a barn to temporarily park the RV out of the weather, so I parked it in the barn in case of rain or mist between coats and then until the second coating was completely dry. Then I parked it outside to allow the sun to seal it up good.
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Old 08-15-2017, 08:29 PM   #3
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Happened to see a similar discussion over on that "other" rv site: but if you heed Smokey's advice on any RV subject, you should be in pretty good shape.
https://www.rv.net/forum/index.cfm/f...d/29385012.cfm
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Old 08-16-2017, 12:19 AM   #4
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Here's a post that the guy used Henry's Tropi-Cool coating the finished product looks good.

Henry Tropi-Cool roof coating
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Old 08-17-2017, 01:51 AM   #5
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I'm going to try the Tropi-cool. Anyone on here have long term experiences with it?
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Old 08-17-2017, 11:30 PM   #6
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Quote:
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I'm going to try the Tropi-cool. Anyone on here have long term experiences with it?
You can PM the original poster in the link and ask him how it is holding up in the AZ sun. Only been a few months, he may be able to see signs of weathering already. I'm planning on using Tropi-cool this fall on my Dolphin.
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Old 08-18-2017, 12:42 AM   #7
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Thanks I just did it! Hope OP responds.
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Old 08-19-2017, 12:22 AM   #8
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Can I use Kirkland dish soap to clean and prep the roof?
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Old 08-19-2017, 01:41 PM   #9
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Can I use Kirkland dish soap to clean and prep the roof?
That'll just make a big mess. You need the special solvent/cleaner for cleaning the old dirty and cracked white coating off of the black EDPM rubber membrane. And again, it must be squeaky clean before you go to the next step.
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Old 08-19-2017, 03:04 PM   #10
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That'll just make a big mess. You need the special solvent/cleaner for cleaning the old dirty and cracked white coating off of the black EDPM rubber membrane. And again, it must be squeaky clean before you go to the next step.
Here's the cleaner I used:

https://dicorproducts.com/product/ep...oating-system/
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Old 08-19-2017, 11:03 PM   #11
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Can I use Kirkland dish soap to clean and prep the roof?
The OP in the posted link used Dawn dish soap in a spray bottle. Need to brush the roof very good.
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Old 08-19-2017, 11:30 PM   #12
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So I pulled the trigger!


Sprayed it down with delicate nozzle on pressure washer.
I failed to see the spray bottle part and poured dawn soap onto the roof(3/4 of small bottle to be exact and brushed with soft bristle car wash brush. Caused a lot of black tarry substance. The did about 3-4 passes with the washer while my cousin hosed down the sides.

Waited about 1 hour and half to dry( it was 100 degrees) then moved to the shade.

Was laying down the first coat when big gust of wind cuased a few leafs and dust specks to fall onto it. I removed as much as possible but I could not turn back.

Laid out a 2nd coat 2 hours laters and it was pretty dry to the touch already.

Several specks are visible -some from the normal texture of the coating caused by the roller some caused by the debris flown in by the wind.

I will lay one more coat tomorrow morning.

I hoping the debris that was stuck doesn't cause me issues. Thoughts?

Overall looks like a nice coating.
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Old 08-20-2017, 08:02 PM   #13
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Finished! 3 coats!
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Old 08-20-2017, 10:36 PM   #14
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Looks good. My roof is not black like yours or the guys it does have some black mold mostly it is showing it's age.
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