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Thread: Roof box repair -- not a crack
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02-03-2020, 01:03 PM #1Registered User
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02-03-2020, 01:38 PM #2Registered User
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2 part epoxy sticks to thule plastic well so if you had the piece of plastic it would be easy but you don't so how do you make another piece ?
maybe someone has a severely wrecked box you could cut that piece out of, that would be the easiest way to do a repair and in that case I would cut the piece, stick it in place from the out side with a large sticker or 2 and then epoxy from the inside with some fibreglass cloth or I have used a spent dryer sheets
not sure how to easily make that piece from scratch
people put sticker on their box so that is also a good way to hide repairsLee Lau - xxx-er is the laziest Asian canuck I know
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02-03-2020, 01:44 PM #3
I think the plastic is abs? You probably can cut a strip, or several if you want to match the profile, and then bond them in place. I'd back that up with epoxy and fiberglass
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02-03-2020, 01:50 PM #4
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02-03-2020, 01:55 PM #5Registered User
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I have no idea -- given the location by the lock I was sort of suspicious. But the box was unlocked and nothing was taken (guess they didn't want 5 year old womens skis or goodwill poles.)
I don't care about looks. Just want a functional repair. Sounds like ABS sheets plus some sort of glue and finished with fiberglass and epoxy.
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02-03-2020, 02:04 PM #6
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02-03-2020, 02:06 PM #7Registered User
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Get some black 3-4" PVC pipe, make a paper template of missing section, cut about a 2" strip out, heat the remaining pipe, form into the shape of the missing area using the current box as a profiler with the sides and the upper parts over lapping about 2" and drill and rivet the new piece on. That patch will be stronger than the rest of your box. Basically make a big ass plastic patch over the missing area. If you really want to get fancy you can even use plastic filler and smooth out the edges of the patch and paint it matte black to match your box.
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02-03-2020, 02:08 PM #8
If Gaperville, CO is front range, you might give Open Road Outfitters a call. They have a pile of shattered boxes in the parking lot and might let you pick through them for a piece.
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02-03-2020, 02:08 PM #9
The labor intensive way would be to use fiberglass epoxy and mat, using something that approximates that curve as a mold. (large dowel, pipe, or just shape a piece of scrap wood by sanding) If you care how it looks, you could add black coloring agent.
Or quicker/more ghetto would be to use aluminum Z bar (aka zee bar) with aluminum flat bar as backing on the inside of the box. Drill some holes and attach with bolts and nylocks. Then seal the gaps with exterior caulking.
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02-03-2020, 03:33 PM #10
Since you don't care about looks, it seems like just bending some thin-ish aluminum to the approximate shape and then bolting or riveting to the box would be pretty quick and easy, and wouldn't be any less secure than the rest of the box. Silicone around the edges for waterproofing. Spray paint it black if you don't want to draw attention to the patch.
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02-03-2020, 03:53 PM #11
Duck Tape.
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02-03-2020, 04:20 PM #12
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02-03-2020, 04:43 PM #13Registered User
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02-03-2020, 05:20 PM #14
FiberFix
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02-04-2020, 11:51 AM #15Registered User
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never seen this^^ stuff but yeah it would probably work, maybe if you could make a bit of a form by taping some thinish plastic in place on the outside and laying up the fiberfix from the inside, I wonder if the product ^^ would stick to the form ?
stickers are awesume for covering up boo boo's, I put a huge crack in the tray of my thule ( pro tip: don't hang off the tray at -17 ) I got the crack closed/edges perfectly lined up, slapped a big sticker over the outside of the area/epoxy & FG matt on the inside and it was good as newLee Lau - xxx-er is the laziest Asian canuck I know
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02-04-2020, 12:30 PM #16Registered User
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Gonna try aluminium can shingle riveted on. If it looks like hell maybe I'll throw some FiberFix over it and spray paint it all black.
Thanks all, lots of good ideas.
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02-04-2020, 03:17 PM #17
I dunno how many pbr 24oz cans you go through in an average Tuesday but I'd for sure go buy myself one specifically for making that repair. The last thing you wanna do is use a Weldwerks or n Knotted Root can for that type of job, ya know? Gotta have the correct materials for the job!
Brandine: Now Cletus, if I catch you with pig lipstick on your collar one more time you ain't gonna be allowed to sleep in the barn no more!
Cletus: Duly noted.
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02-04-2020, 03:32 PM #18Registered User
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02-04-2020, 07:35 PM #19
1. don't bother repairing the lock, fix so functional to not open while driving
2. at hill, remove items not needed and place inside vehicle, cover with blanket for added security
if it's not in plain sight or inticing while casually strolling by, bad guys will move on...
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02-04-2020, 07:51 PM #20Registered User
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The lock works fine. I just want to prevent future expanding damage and water entry so I can use it for camp gear in the summer. In the winter it's just skis.
Still want it fixed so as people don't go peeping. I'm not unloading the top every time to inside the vehicle. The whole point is shit stays wet and up there so we can camp inside.
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02-04-2020, 08:23 PM #21
This with duct tape as the mold
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02-04-2020, 08:39 PM #22
wasn't meant to be dikish, just mentioned from previous experience
but, might be time for a new rig?
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02-04-2020, 08:40 PM #23Registered User
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02-04-2020, 08:46 PM #24
I would use the profile of the adjacent rim as a mold - use some release agent or wax paper, lay up a length that will overlap the broken section with fiberglass or carbon fiber tape, cut and shape when dry, and pop rivet or screw over broken section.
I hope that makes sense. If you lay up carbon fiber, use a good mask and vacuum when cutting/shaping.
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02-04-2020, 08:46 PM #25
I think Duck tape would work better.
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