mnnaj Posted May 28, 2016 Report Share Posted May 28, 2016 A friend with a terminal illness wants an urn to eventually (soon) be sunk into a lake with some of his and his now deceased brothers ashes. I'm thinking that ashes, even in a ceramic urn, may float. Any ideas to insure that the urn will sink during the ceremony? Thanks Nancy Link to comment Share on other sites More sharing options...
Mark C. Posted May 28, 2016 Report Share Posted May 28, 2016 Ashes do not have much buoyancy if any. Only the smaller micro ashes float on surface when spreading (I have had a lots of experience in this field).The larger pieces will sink. The pot will sink as long as the air can get out (and this is only if pot is way oversized as the pot should sink with its own weight) so leave a small pin hole for that if the pot is a large one. especially if you use say silicone to seal lid. Why not just spread them on lake and forgo the urn? Link to comment Share on other sites More sharing options...
Callie Beller Diesel Posted May 28, 2016 Report Share Posted May 28, 2016 I did this ten years ago with some of my husband's father's ashes in a small, sugar jar sized urn. It sank just fine. But the pinhole is probably a good bit of insurance. Link to comment Share on other sites More sharing options...
preeta Posted May 28, 2016 Report Share Posted May 28, 2016 if your friend is ok with it and if his family is not going to store the urn for a significant period of time why cant you just do a greenware item with slip if you so desire or even just acrylic paint if you so desire. i would imagine it would eventually sink if it doesnt right away. Link to comment Share on other sites More sharing options...
bciskepottery Posted May 28, 2016 Report Share Posted May 28, 2016 Thick walls, thick bottom. If the intent is for the urn to sink, design/make it to sink. Large enough to hold the amount of ashes, but not too large to allow for an air pocket that could create buoyancy. If you are unsure, make a prototype and test. Private lake or public lake? And, are there any ordinances, laws regarding disposal of ashes in that place? Link to comment Share on other sites More sharing options...
Mark C. Posted May 29, 2016 Report Share Posted May 29, 2016 As a diver who finds things underwater I suggest a DEEP spot like 150 feet or more so recreational divers do not stumble on it over time.Just another thought.No one thinks about this much. Link to comment Share on other sites More sharing options...
mnnaj Posted May 30, 2016 Author Report Share Posted May 30, 2016 Thanks for your comments. It's an urn with a cork type in the opening, I'll make sure to let who ever is filling it know to leave a hole when sealing it. Never thought of someone diving it up. Link to comment Share on other sites More sharing options...
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