Just a follow up on Glue strength, here is a forklift destruction test video, would apply to any 3MPa glue. As long as you prep the surface fairly well this stuff never comes off.
My Sika equivalent glue has strength of 3 MPa. So a 5cm X 10cm area has a 1.5 tonne breaking strength. Each of my 4 brackets has adhesive strength to lift my entire camper. The roof or brackets will fail a lot sooner than the adhesive.
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Great breakdown, thanks. My experience is that many of the adhesives, bolts and other fasteners are massively over engineered for what we use. It's not having a clean surface for adhesives, pull through bolts, poorly seated rivnuts etc that fail. The floor of my camper is secured to the truck by...
For my next build I'm going to glue down parallel t-track then bolt into that. The problem with adhesive is if the solar panel fails I might need to replace it with a different size panel.
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I always use rivnuts in composite panels. Strongly recommended.
If you have an air compressor get an air nut riveter from eBay. Much easier to use.
Rivnuts are a bit stronger than screws and allow you to remove the bolt/fitting repeatedly.
For slightly added strength I drop some adhesive into...
In Australia here - so can't help with finding a composite supplier.
Having built a few truck campers from composites, some of my tips - feel free to ignore...
On my "never again" list, painting the shell. It's messy, stinks, hard work, lots of prep, and probably toxic. Get a composite in any...
For all that work it might be cheaper and much lighter using composite panels cut to the right size. Unless a shipping container is somehow core to the design?
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Hey Mark,
I fully designed mine in SketchUp Make. Then I got the facing panels built professionally. Used a cutlist plugin for all my timber framing.
Biggest thing was to build as much as possible outside the vehicle, fully operational with electric and plumbing. Then move it inside and fix it...
Teroson ms 939 is very good, 3 MPa strength, fast cure.
If you're doing a lot invest in an air compressor fired sausage gun, worth the spend.
https://www.henkel-adhesives.com/au/en/product/flexible-sealants/teroson_ms_939.html
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