dana
Solar Newcomer
Posts: 3 
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Post by dana on Oct 1, 2018 20:16:19 GMT
Just a heads-up that your MTS-CB installation instructions should include a note to pretty aggressively rough-up gluing surfaces with course sandpaper. They're too smooth. I used a scotchbrite on all surfaces and Sikaflex 252 adhesive, but still had two solar panels blow off and get destroyed. The adhesive came loose between the MTS and the panel on all 6 locations. I'm bummed. This will be $$$$ to replace. I just noticed they were missing as I was headed out of town.
Thanks
-Dana
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Post by tattoo on Oct 1, 2018 21:04:27 GMT
Just a heads-up that your MTS-CB installation instructions should include a note to pretty aggressively rough-up gluing surfaces with course sandpaper. They're too smooth. I used a scotchbrite on all surfaces and Sikaflex 252 adhesive, but still had two solar panels blow off and get destroyed. The adhesive came loose between the MTS and the panel on all 6 locations. I'm bummed. This will be $$$$ to replace. I just noticed they were missing as I was headed out of town. Thanks -Dana I really doubt that any glue would hold a panel on a roof for very long going down the road... To me that's very dangerous for people on the road behind you..... They should be bolted down or removed during transporting and reinstalled when your not in motion.... |
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v10
Solar Advocate
Posts: 81
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Post by v10 on Oct 1, 2018 21:19:25 GMT
I think if you were to use 100 grit to scuff all surfaces and let it cure for about 10 days you MIGHT be ok for while
I would never trust it nor would I trust being behind someone with glued on panels or in front of them for that matter
Nothing but a projectile if you rear end the car in front of you
Bolt them down
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dana
Solar Newcomer
Posts: 3
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Post by dana on Oct 1, 2018 22:30:42 GMT
Just a heads-up that your MTS-CB installation instructions should include a note to pretty aggressively rough-up gluing surfaces with course sandpaper. They're too smooth. I used a scotchbrite on all surfaces and Sikaflex 252 adhesive, but still had two solar panels blow off and get destroyed. The adhesive came loose between the MTS and the panel on all 6 locations. I'm bummed. This will be $$$$ to replace. I just noticed they were missing as I was headed out of town. Thanks -Dana I really doubt that any glue would hold a panel on a roof for very long going down the road... To me that's very dangerous for people on the road behind you..... They should be bolted down or removed during transporting and reinstalled when your not in motion.... Agreed. I just purchased what was recommended for the application of the rooftop mount. I sourced the specified Sikaflex adhesive (not cheap) because I wanted to be sure they would stay on. I ride motorbikes and am hyper-aware of people not strapping down their loads, which makes this all the more distressing. Anyway, that's the reason for my post ... when I reinstall I will definitely be screw-mounting. Thx |
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Post by tattoo on Oct 1, 2018 22:32:38 GMT
I think if you were to use 100 grit to scuff all surfaces and let it cure for about 10 days you MIGHT be ok for while I would never trust it nor would I trust being behind someone with glued on panels or in front of them for that matter Nothing but a projectile if you rear end the car in front of you Bolt them down I ride motorcycles and I have for 45+ years and I makes me cringe to think that someone would even think that glue would hold a panel on a roof of a motor home or camper..... Drill a hole in the roof that's the way to go... |
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Post by tattoo on Oct 1, 2018 22:34:25 GMT
Agreed. I just purchased what was recommended for the application of the rooftop mount. If they are selling them to be glued on a roof they are fools and should go out of business.... |
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v10
Solar Advocate
Posts: 81
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Post by v10 on Oct 1, 2018 23:48:25 GMT
The best place for sealer is your local RV or boat parts store.
Tell them you have to drill holes in your roof and they will fix you right up.
Renogys cable entry box gives no accommodation for screws so they need to be glued on.
There is no chance of it becoming a projectile because both cables hold it also.
The sika takes a very long time to cure and I needed the van mobile so I used a product called 'white marine tex'. Its stronger than the box, maybe even the sheet metal.
I also ride and any one encouraging people to glue solar panels on their roof and drive on the highway needs to rethink that idea.
Please
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dana
Solar Newcomer
Posts: 3
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Post by dana on Oct 2, 2018 15:20:43 GMT
The best place for sealer is your local RV or boat parts store. Tell them you have to drill holes in your roof and they will fix you right up. Renogys cable entry box gives no accommodation for screws so they need to be glued on. There is no chance of it becoming a projectile because both cables hold it also. The sika takes a very long time to cure and I needed the van mobile so I used a product called 'white marine tex'. Its stronger than the box, maybe even the sheet metal. I also ride and any one encouraging people to glue solar panels on their roof and drive on the highway needs to rethink that idea. Please Thanks. Yes, the Sikaflex 252 adhesive Renogy recommends came from a local marine supply. There are some pretty high-tech adhesives out there, so I was assuming this was appropriate for the job. Remember, even some cars are assembled with adhesives rather than welds these days, so the idea isn't that crazy. That said, I'll be using screwed mounts AND adhesive for this next round. We get some pretty serious cross winds in the Utah desert. I used the Sikaflex 252 for the cable entry box and finished it with some self-leveling sealant, and that seemed to work well. |
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Post by tattoo on Oct 2, 2018 17:04:14 GMT
Remember, even some cars are assembled with adhesives rather than welds these days, so the idea isn't that crazy.
Yes you are correct... But the difference is air doesn't get under a fender or what ever it's closed in.... If you have a wreck and the fender is hanging out so that the air can get under it, Even it will blow off the car....
If Renogy is telling people it's ok to glue a panel on top of a moving vehicle I see a lawsuit in their future....
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Post by bupkis on Oct 2, 2018 18:09:02 GMT
amsolar must be due a law suit but none of their mounts have left the roof
Roof Attachment
Fiberglass roofs – We have been using a type of 3M double-sided tape on our mounts since the mid 1990’s, and we have never lost a panel. As long as the tape is properly installed on a clean surface at the correct temperature, it will hold. As an added level of protection, we use a layer of Dicor self-leveling sealant around the entire perimeter of the mount, and cover the screw holes/heads as well. The sealant protects the tape and any potential roof penetrations from water intrusion and decay.
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v10
Solar Advocate
Posts: 81
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Post by v10 on Oct 2, 2018 18:36:27 GMT
Good point. A friend owns a body shop and said he hasn't welded a panel in years 2 part epoxy and no heat distortion from the welder
Personally I would glue a quarter panel but screw a solar panel
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grumpy
Solar Newcomer
Posts: 40
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Post by grumpy on Oct 2, 2018 20:49:35 GMT
Agreed. I just purchased what was recommended for the application of the rooftop mount. If they are selling them to be glued on a roof they are fools and should go out of business.... Well tattoo, guess you just lost all your brownie points with Renogy because the MTS-CB mounts sold by Renogy are designed for drill free application. I have my MTS mounts glued to the roof and used screws to mount the panels. |
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Post by tattoo on Oct 2, 2018 21:15:50 GMT
Well tattoo, guess you just lost all your brownie points with Renogy because the MTS-CB mounts sold by Renogy are designed for drill free application. I have my MTS mounts glued to the roof and used screws to mount the panels. If I do then so be it.... My life as well as others are worth way more than brownie points to any company.... If they are glued all the way around the panel to the roof that would be ok.... There are way to many ways for it to fail for it to be safe.... LOL Hell I bet they didn't even include detailed instructions to show how to do it, they don't with anything else...... If so that's a first....
I bet the same guy that came up with the idea to glue panels with just 4 4" spots to the roof of a vehicle is the same guy that decided that a wire lug on a temperature sensor would be a good idea....
Do people even think about this shit before they say that's a great idea???
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grumpy
Solar Newcomer
Posts: 40
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Post by grumpy on Oct 2, 2018 21:52:14 GMT
Well tattoo, guess you just lost all your brownie points with Renogy because the MTS-CB mounts sold by Renogy are designed for drill free application. I have my MTS mounts glued to the roof and used screws to mount the panels. If I do then so be it.... My life as well as others are worth way more than brownie points to any company.... If they are glued all the way around the panel to the roof that would be ok.... There are way to many ways for it to fail for it to be safe.... LOL Hell I bet they didn't even include detailed instructions to show how to do it, they don't with anything else...... If so that's a first....
I bet the same guy that came up with the idea to glue panels with just 4 4" spots to the roof of a vehicle is the same guy that decided that a wire lug on a temperature sensor would be a good idea....
Do people even think about this shit before they say that's a great idea???
LOL, All about the mighty $. |
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Post by tattoo on Oct 2, 2018 22:39:55 GMT
LOL, All about the mighty $.
Yep you got that right.......
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