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Old 05-10-2018, 03:45 PM   #1
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Outside paint cracking

Noticed in the corners where the cab meets the motorhome some cracking in the paint. Don't have pics, will get them memorial day weekend when we head out again. In the meantime, anybody have suggestions for best clear caulking to use, or any other suggestions?
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Old 05-10-2018, 03:53 PM   #2
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Noticed in the corners where the cab meets the motorhome some cracking in the paint. Don't have pics, will get them memorial day weekend when we head out again. In the meantime, anybody have suggestions for best clear caulking to use, or any other suggestions?
I don't have a Dynamax, but I used to work on all sorts of school busses, which are very similar to what you're driving.

If you are talking about the area that I think you're talking about, it's purely cosmetic. There is a large amount of caulking and adhesive between the cab and body that is able to flex from movement, and temperature. The paint doesn't flex as much so it cracks. The sealant is still there doing it's job.

Again, if it's what I think it is, you'll be fine but it's just a little unsightly.
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Old 05-10-2018, 04:10 PM   #3
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Hmm ok good to know. When we take it out again will try to get good pics to confirm. And it's not obvious, just saw it while standing there fueling up.Thank you!!!
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Old 05-10-2018, 04:17 PM   #4
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^^correct^^. its not the paint per se, but the paint over the flexible sealant. On the small stuff, what we normally do is wait to seal it until it has been painted. BUT, some things, to get a proper seal, you can't really do that. So we go back over those seams with black caulk after the fact. We have lots of black trim, windows, frames, etc so it seems to blend.

On the big trucks, we have not, but have been thinking about it. You can re-paint that and it is just going to crack out again. We actually have a board sitting in my operations manager's office of the umpteen caulk colors offered by Dicor. Going back over that area with a color match caulk (not clear) is the best corrective action and the one least likely to need any attention in the future. We were just trying to figure out how few colors we can get by with, or to use black instead.
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Old 05-10-2018, 04:24 PM   #5
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*whew* Got confirmation from the guy that makes them. Glad I wasn't talking out of my rear.
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Old 05-11-2018, 11:40 AM   #6
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I love this forum, help and advice at your fingertips. Thanks very much. And Brian your presence on here is unparalleled. You must be having trouble keeping up with the orders
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Old 05-20-2018, 06:55 PM   #7
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^^correct^^. its not the paint per se, but the paint over the flexible sealant. On the small stuff, what we normally do is wait to seal it until it has been painted. BUT, some things, to get a proper seal, you can't really do that. So we go back over those seams with black caulk after the fact. We have lots of black trim, windows, frames, etc so it seems to blend.

On the big trucks, we have not, but have been thinking about it. You can re-paint that and it is just going to crack out again. We actually have a board sitting in my operations manager's office of the umpteen caulk colors offered by Dicor. Going back over that area with a color match caulk (not clear) is the best corrective action and the one least likely to need any attention in the future. We were just trying to figure out how few colors we can get by with, or to use black instead.
How can I purchase some silver caulk for the cosmic blue Isata 5?
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Old 05-20-2018, 07:58 PM   #8
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I used silver metallic silicone from amazon. Matched the silver on Force.
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Old 05-20-2018, 08:09 PM   #9
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I used silver metallic silicone from amazon. Matched the silver on Force.

Never use a silicone based sealer on the exterior of your coach. Nothing will stick to it in the future.
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Old 05-20-2018, 09:45 PM   #10
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I used silver metallic silicone from amazon. Matched the silver on Force.


Have a link? Did not see any on Amazon.
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