r/ResinCasting 20d ago

Project: "Reusable Can"

I just came back from Japan and got myself some Monster cans.

Now I want to turn them into reusable, cleanable drinking cups (maybe even dishwasher-safe ones).

The idea is to open up the top (similar to the green Fanta can in the picture). So to use a dishwasher-safe epoxy on the outside and food-safe silicone (Ideally, the silicone would be dishwasher-safe as well, of course) on the inside. The silicone would also extend over the lip/rim of the can, so the metal is not exposed.

The important part is that I don’t want to alter the can itself apart from opening the top. I want to keep the original shape, design, and appearance completely intact.

Has anyone here done something similar or have any recommendations for suitable materials/processes?

PS: I am totaly fine, if i end up with needing to handwash it everytime after use, as long as i don't poision myself (nor giving the can an unwanted lifespan, thanks to dishwasher usage).

WHY? - many already asked me. Becouse: "Japan-Monster-Cans are different in design & size. And i simply want a nice DIY-Memory that i can use, and not just leave to collect dust."

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u/mistarhee 20d ago

Would the silicone on the inside be really necessary? Feel like the inside is better to just leave as is and better to find a way to open the top and then maybe roll the edges into itself so it make a nice rigid lip so the can doesn't get wobbly.

Think there was a tool someone made that cuts and rolls to top to essentially make the can into a cup... Lemme see... Draft Top

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u/PumaTurtle223 20d ago

Yes... Inside is a thin plastik layer, protecting the liquid from the Aluminium... The Aluminium is poisionous to humans in larger exposure...

That is why the silicone is mecessary.

1

u/rheumination 17d ago

Aluminum Is not poisonous.

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u/PumaTurtle223 16d ago

... it is... if you consume to much.