SamaN Interior Water Based Wood Stain - Natural Stain for Furniture, Moldings, Wood Paneling, Cabinets (Black TEW-108-12, 12 oz)

Unfortunately you must sand off the hard wax and start over. You could try Rubio's Precolor Intense Black stain or Angelus Black Leather dye. https://fernwehwoodworking.com/products/pre-color-intense-black-rubio-monocoat-pre-color-base-system-1l?variant=29151631474711 Leather dyes are commonly used to color guitar bodies and achieve smooth gradients with highly pigmented colors. They work excellent on ash and go on smooth with no lap marks. The color is deep and intense but retains full view of the wood grain. https://m.youtube.com/watch?v=uHAvvMftSOI Also, Saman makes a rich black wood stain that goes on easy and allows the grain to show through. https://a.co/d/043XNfby