An apparatus for applying a wax seal to an article such as a wine bottle including a bottom tank formed of at least one upstanding wall and a bottom wall and having an open top end, the bottom tank being fitted with electrical heating means; an upper tank formed of at least one upstanding wall and having an open top end and a closed bottom wall, the upper tank being fitted with electrical heating means, the upper tank being connected at its closed bottom wall with the open top end of said bottom tank, a screen adjustably located inside the upper tank, a pump located in the bottom tank and extending into the upper tank for conveying molten wax from the bottom tank to the upper tank and an overflow opening in the upper tank.