Sealing copper.

Aquarium Decor, DIY and Equipment.
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Ricrhys
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I'm looking for a fish safe sealant, I have a project where maybe 40mm of copper pipe will be in contact with the water, I'd like to seal the copper pipe, anything out there

TIA Hope you're all having a lovely weekend.
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Vale!
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Might something as simple as Vaseline do the job?
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Ricrhys
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I was hoping for a long term laquer style, sorry should have bee more clear (like the laquer needs to be).
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Stephen
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Is it for a fish tank?
Can you give just a little more info on the use please?

Thanks ;)
425L SeaBray Elite aquarium - Rio Mamoré (Bolivia) theme
4 x Cupid Cichlids, 14 x Cory caudimaculatus, 13 x Cory sterbai 52 x Reed Tetra, 4 x Honeycomb Bristlenose (L519)

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plankton
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I'd be looking at marine varnish, but would be very dubious about putting it near a fish tank anyway.....???
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fr499y
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a better option would be copper spray paint over 40mm plastic pipe with an acrylic clear coat.
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Ricrhys
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Sorry I was too vague, I'm making a stand for my light out of copper pipe, for the four feet I was planning to notch a 10mm (40mm in total) groove out of the pipe to sit over the glass, I have my tank full to a few mm from the top. I'd like to seal it, especially the bits in the tank, the acrylic clear coat sounds good.
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