Cut Plastic bottle in half, then reattach.

Heyah, So yeah....for a project i'm working on I would like to cut a plastic(coke cola) bottle in half, then put some stuff inside, reattach the 2 half's together, then fill it with a liquid.(Don't ask)

My first attempt I used hot glue, but sadly the plastic is super sensitive to heat it would seem and it just simply melted the plastic so I wasn't able to seal it.  I tried to even let the glue cool down, then apply it but that didn't work either.

Any ideas?

You could try silicone, no heat required.
lemonie7 years ago
You could try a weld. Get a sheet of metal, or a flat-bottomed pan. Put some kitchen foil on it, then your bottle. Heat it gently on a stove, let the bottle melt driven by gravity, turn off the heat and let it cool.
Make sure your fit is tight and your edges as straight as possible.