Most of our cremation urns do not require a sealant, but you may apply a small bead of wood glue, caulk, or other adhesive around the edges of the urn opening if you so choose.
In most cases you will receive the cremains from the funeral home inside a plastic bag which will be inside a plastic or cardboard temporary urn, so usually the best method for placing the ashes into an urn is to simply leave the cremains in the plastic bag and set the bag in the urn.
With most of our wood urns, the entire bottom panel is removeable, allowing you to easily place the ashes into the urn. With many of our marble or stone urns, the interior of the urn is accessed by a threaded stopper and thus pouring the remains is the recommended method. Ceramic urns are often accessed by removing the lid and, depending on the size of the opening, the ashes can either be placed into the urn inside the plastic bag or should be poured in.
Should you choose an urn with a small opening or simply decide to pour the ashes into the cremation urn, sealing is recommended to prevent leakage. You may also want to apply a sealant upon closure of the urn to ensure permanance, regardless of whether the plastic bag is used or not.