Blotchy coat
Q: My third coat of polyurethane on my hardwood floors came out blotchy, high sheen to low sheen. How do we fix this?
A: There are numerous elements that can all affect how a coat dries and how it looks after.
The only thing I can suggest is to lightly buff or abrade the last coat and clean up thoroughly. Before applying the next, make sure the finish is stirred very well. It is OK to have some windows open to vent the rooms, but you don’t want a lot of air movement in the rooms until the finish has had a chance to flow to level and set up. Apply thin coats.
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