Battery box building

could it be one of these?

https://www.google.com/search?q=building+a+battery+box+with+black+fiberglass+tape%2C+water+activated%2C+self+gluing&ie=utf-8&oe=utf-8
 
The resin is most likely a urethane base. Gorilla glue family. You can make your own with it and some fiberglass cloth. You can get many different ready made products that must be used up once opened as they absorb moisture from the air and will set up quickly. Have no idea what they were using in what your talking about but these are common hardware store items.
https://www.fernco.com/plumbing/pow-r-repair/pow-r-wrap-industrial-size
https://www.grainger.com/category/pipe-repair-wrap/pipe-repair-clamps-and-couplings/pipe-tubing-and-fittings/plumbing/ecatalog/N-150oZ1yzq7vw
 
I’m about to try this ridiculously strong repair wrap on this box.
It comes 1,2 or 4” wide and some small rectangle sizes
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sabongi said:
FIY i know how to use google.
Sorry for trying to help you by asking a question with a pointer.

I'll leave you to find it on your own then.
 
That small repair box will get you started. :D If you decide the shape - size is good, you can add layers. I would find a boat supply place nearby that has fabric. You can make your own as I mentioned before. Simply lay some poly on a flat surface, and lay out some glue -resin and top with sections of fabric. Cover with another layer of poly and rubber roller it back and forth until the fabric is fully saturated and wringer it as thin as you can. Lay it out onto the box and roller it in so there are no air bubbles. Depending on how sticky the mass is you can use a bit of poly sheet to cover it to help keep your roller clean. Wear gloves and work in a shop area that can get messy. Auto detailing wipes are fantastic to have on hand to clean up the inevitable creep of sticky mess you will have. 8)
 
Here is the stuff gluing a vehicle that is driven off a cliff:

https://www.youtube.com/watch?v=haPvuhznuyI

They said it withstands up to 850 degrees Farenheight

https://youtu.be/pa1J1AE109Y?t=340

So, to do an entire box out of it, You can make lots of the same material.... At the end of the day, getting gloves on to soak some carbon in resin and lay it on is frocking good fun, albeit gooey.

A/ get ribbons of carbon fiber or glass fiber
B/ dunk the carbon fiber in a pan of epoxy
C/ squeeze and purge all the epoxy out of the fiber using a roller/rubber slate
D/ wrap the stuff.
 
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I’ve got a few sizes to try out
 
First layer of 4” clamped with pallet wrap
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Dries fast
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The patches are fibreglass mesh dipped in resin, kinda of thick and smelly. Ventilation required.
 
AWESOME!!!! Thanks for the nice project pics. The carbon tape is brilliant...

The strongest glass reinforced epoxy laminate sheet is circuit boards... They have 7-10 layers and they are cured in an oven.

You can make a battery box for free from circuit board, using your technique! You'd have to print it in silver at the edges and it has silver solder flecks on it.

Collect motherboards from around the place, Personally I go for raids at the recycle center sometimes because it's fun, I get free bike batteries, free motors, fans... very many things :D

Take an axe or a chisel and scrape the capacitors and ceramics and chips away from the FR4 fiberglass board. You get free USB fem connectors for your onboard ebike charger too.

It would be easy to then seam the boards together using your tape/ prepreg. I improvised a side board for my battery box, it took 5 minutes to chisel the PCI sound card: https://youtu.be/iVQB0cwwPoM?t=40

The chisel needs sharpening after every board, that's why an axe is perhaps better... Instead of Yellow, you have Green and Blue blank motherboards with silver in it :D

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