*Can I Change the Sheen of the Topcoat? The One I Applied Is Too Shiny.
If you want to change the sheen, you can re-coat with a different sheen over top. The second layer of top coat will replace the appearance of the first.
Sand lightly with a used 220 sanding PAD to knock down the original finish before re-coating. It may take two or 3 coats to get complete coverage.