I have a glass bottle, and I would like to change the volume of the bottle by a few milliliters. How can this be done? Without a furnace preferably. Can I just dump some gorilla glue in there until it fills to the correct measurement?
I have a glass bottle, and I would like to change the volume of the bottle by a few milliliters. How can this be done?
Is it used for food? Hot or cold temperatures? Acids or bases? Sun exposure?
Food, room to cold temperature, both but not extremes, possible sun exposure.
I would recommend silicon caulk, it’s silica so it’s food safe. It’s pretty easy to find in hardware shops, maybe even supermarkets.
I would call the manufacturer and check the MSDS before I started squirting caulk into food grade containers.
put a glass marble in it
Clever. Easier to get the volume right as well. You can use a measuring cup to pre-test how many marbles you'll need for X mL displacement.
The problem with this is they have to be small enough to fit in the opening of the bottle, which means that they will also fall out of the bottle when dispensing the liquid. Which could lead to swallowing a marble or dumping them down your sink drain depending what you're doing with it. Also it makes noise. Makes much more sense to put an amount of something permanent in the bottle to take up the unwanted space like the epoxy
suggested.
Pour some clear epoxy resin in there and let is set up. While lot of them are more or less inert once cured, you should use one that is FDA approved for food contact (like pic related) to be sure.
Oh, neat. I
was going to suggest a resin but I could not find anything that came in quantities less than 1000ml.
Some pee wee bois would fit in for sure, but you're right on the rest I guess.
>toxicity warnings on the front of the bottle
glass beads will fit, and nothing will happen if you eat a few of them.
even better, OP could attribute hippy dippy mystical powers to the added ''gemstones'' and sell their snake oil for even more money.
>toxicity warnings on the front of the bottle
Yes, because you have to tell morons not to drink the liquid in the bottles. It's completely fine once it has cured.
>it's completely fine, trust us
> Have access to the greatest information tool since the library of Alexandria
> still choose to act like an ignorant frickwad
https://www.artresin.com/blogs/artresin/artresin-passes-food-safety-tests
But let me guess, still not good enough for (you), right? Any other inert polymers you want to compare to an active pesticide?
It's just as chemically inert as plastic soda bottles or disposable silverware. The FDA has some pretty stringent tests they put shit through before they approve it safe for food contact.
How about you just don't fill the bottle to the very top?