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Old 06-05-2015, 09:32 PM   #61
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I still do not know what we are seeing in the photos. Is that fiberglass all torn up? Is the black the epoxy or just dirt?
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Old 06-05-2015, 09:45 PM   #62
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I still do not know what we are seeing in the photos. Is that fiberglass all torn up? Is the black the epoxy or just dirt?
Also where are the rails ?
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Old 06-05-2015, 09:51 PM   #63
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Also where are the rails ?
Um, probably with the solar panel, wherever that is, since they were bolted to the panel.
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Old 06-05-2015, 09:57 PM   #64
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Um, probably with the solar panel, wherever that is, since they were bolted to the panel.
I am being a smart alec Robert then the epoxy holding the rails failed because looks like epoxy is still there but the rails are on panel ? Pat
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Old 06-05-2015, 10:02 PM   #65
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I am being a smart alec Robert then the epoxy holding the rails failed because looks like epoxy is still there but the rails are on panel ? Pat
Only Heaven knows Pat - or maybe the poor soul who found the panel mangled in the middle of the road.
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Old 06-05-2015, 10:09 PM   #66
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Only Heaven knows Pat - or maybe the poor soul who found the panel mangled in the middle of the road.
Hopefully no one was hurt or someone's property . Going down the road you don't hear that happening . I still need to do some checking before it is off the table for me . Pat
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Old 06-05-2015, 10:23 PM   #67
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Best I can make out, one rail broke loose from the epoxy. On the other side the epoxy held to the gel coat, instead the gel coat broke loose from the fiberglass. which side failed first is anyone's guess.

Back when I was looking into installing my panel I read it's best to grind away the gel coat, not that I did that but that's what was suggested by West System. Care also needs to be taken for bonding of aluminum to epoxy.

The only grey epoxy I've seen is the putty type, like the JB Weld. It has a 60 minute cure time which fits int he 3 hour time frame they took for the install. FWIW, the longer 24 hr cure time epoxy is quite a bit stronger then the fast cure.
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Old 06-05-2015, 10:23 PM   #68
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This just about covers why my solar panel is on a mast. At mile 0 of the Alaska highway, Dawson Creek, and it's blowing a gale but the panels not going anywhere.

!. All traces of epoxy must be removed before using the gelcoat. You can only bond polyester to green polyester and even then it's not all that strong. Epoxy bonds to polyester; polyester gelcoat can't be put over epoxy resin with good results.

2. Through bolting is the only way to go for absolute security. The only major requirement is to use backing pads, not very difficult to do.

3. It's too bad that ETI hasn't modified their molds to create two parrallel ridges about 2" high similar to the ones on boats used for grab rails. This would allow for crossbolts through the ridge without having any intrusion into the interior.

Glad there wasn't anyone injured and good luck with the repair.

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Old 06-05-2015, 10:41 PM   #69
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Best I can make out, one rail broke loose from the epoxy. On the other side the epoxy held to the gel coat, instead the gel coat broke loose from the fiberglass. which side failed first is anyone's guess.

Back when I was looking into installing my panel I read it's best to grind away the gel coat, not that I did that but that's what was suggested by West System. Care also needs to be taken for bonding of aluminum to epoxy.

The only grey epoxy I've seen is the putty type, like the JB Weld. It has a 60 minute cure time which fits int he 3 hour time frame they took for the install. FWIW, the longer 24 hr cure time epoxy is quite a bit stronger then the fast cure.
Really makes sense . Always best to get down to the real surface with no shine and scratched up to hold better . Was confused about 3-4 hour time to complete when I also saw 24 hours before you attach anything to it or move going down the road . I think I would want the stronger cure . That's just me I tend to overdo and never have to redo . Pat
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Old 06-05-2015, 10:43 PM   #70
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This just about covers why my solar panel is on a mast. At mile 0 of the Alaska highway, Dawson Creek, and it's blowing a gale but the panels not going anywhere.

!. All traces of epoxy must be removed before using the gelcoat. You can only bond polyester to green polyester and even then it's not all that strong. Epoxy bonds to polyester; polyester gelcoat can't be put over epoxy resin with good results.

2. Through bolting is the only way to go for absolute security. The only major requirement is to use backing pads, not very difficult to do.

3. It's too bad that ETI hasn't modified their molds to create two parrallel ridges about 2" high similar to the ones on boats used for grab rails. This would allow for crossbolts through the ridge without having any intrusion into the interior.

Glad there wasn't anyone injured and good luck with the repair.

Ron
Ron how can I get your mod for the panel ? Pat
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