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Bottle stem holder Answered

I have a lot of bottles i want to turn into differnt glasses. I liked tkhe idea of these stem holders but dont want to buy them. I'm thinking if using cutting and using the bottle bottoms so i need a way to attach them. Is there a food safe glue/epoxy to do this. Can i weld or melt the glass together. Yes, i can just buy the item buts thats not the point.

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danneauxs

5 months ago

Thanks for the replies. Didn't notice them earlier as my spam filter marked them as junk again! I just received my cutting rig so smooth cuts should be possible with practice. I'm going to try gorilla glue, 2 part expoxies, and marine epoxy. Since I'm going to find something to plug the neck of the bottles (maybe on the wine bottles the plastic cork) I'm not worried about toxicity so much as there will be no contact. Heck maybe in that case superglue would work also.
In case it wasn't clear I plan to cut the bottom of the bottle off, then attach it to the stem (top) to make a wine glass. I also plan to do the opposite as in cut the top of the bottle off and glue it to the bottom to make a goblet.

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Jack A Lopez

6 months ago

On this page,

https://www.musely.com/tips/turn-glass-bottles-int...

In this particular image,

https://media.musely.com/u/7ad16a61-6c47-4da8-80b6...

There is mention, without reference, to something called, "ultraviolet glass adhesive."

The images and prose in this piece make it seem so easy... which probably means it is a lie.

Like most adhesives intended for glass, it is likely something weak, and something that cannot stand up to heat, or chemicals, the way actual glass can.

Actually there are a few chemicals that can dissolve glass. Hot alkali, like molten NaOH (sodium hydroxide), is one of them. It can dissolve glass, at temperatures much less than the, whatyoucallit, softening temperature or working temperature, of the glass.

I recall Nurdrage, did a video to demonstrate this, here:
https://www.instructables.com/id/Dissolve-Glass-wi...



Also hot aqueous NaOH (which is colder than 100 C, colder than molten NaOH) can dissolve glass too, if the glass is very finely divided, like is the case for silica gel.

I have seen videos of people making homemade sodium silicate, by dissolving silica gel into hot aqueous NaOH.



Also, the other day, someone was asking this forum for a salt that could absorb microwaves, and thus be heated by an ordinary microwave oven.

https://www.instructables.com/topics/Material-to-r...

And you know, it would certainly be a neat trick, if you take some sort of strong alkali, like in the form of a paste, and sandwich it in between two pieces of glass, then put these into a microwave oven, and have the microwaves heat just the paste, until it gets hot enough to start dissolving the glass, or dissolving into the glass, and maybe even bonding the two pieces of glass together.

Well, neat trick or fantasy. I have no idea if such a trick could actually work.

If you try it, keep in mind that molten NaOH is really nasty stuff. It is capable of melting human flesh too. I think Nurdrage probably mentioned this in his demo video, linked previously. I do not remember exactly what he said about molten NaOH, but he probably said something, because he is usually very conscientious about safety.

cut-n-paste-glass-glue.jpg
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Downunder35mJack A Lopez

Reply 6 months ago

You are right with the UV glue.
I tried several, including non-UV curing glues.
Most actually work fine if it is just to fix a broken piece but no so good if you want to actually use the glass as normal once fixed.
Dishwashers for example reduce the adhesive to nothing quickly, hot stuff usually makes the bond go soft and well, freezing temps make it brittle and pop off.
Waterglass or sodium silicate solution works to some extend but usually leaves a white residue that is really hard to clean off.
So far I have not found anything that fixes glass back to what it was :(

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Downunder35m

6 months ago

I tried a similar thing with various success.
The biggest problem is a clean cut, so you might need a rig for this - trust me, well worth the extra time.
Problem with glue is that you need something that can tolerate not just the changing temps from cold drinks and hot water in the sink.
There are food safe epoxy glues and resins available - check a local molding supply store, or online for that matter.
But none of them really work well on unsanded (frosted) glass.
Some are not tolerant to alcohol, so check that part carefully.
Melting glass together is certainly an option but without a half decent kiln to heat the glass and a good torch you will end up with about 50% of loss like I did ;)
I ended up making just some normal glasses without a stem, just the bottom part of a bottle...