I am refinishing an old dresser. I sanded off the old finish and applied a minwax oil based stain. It was allowed to dry for a couple of weeks. When I tried to apply Olympic water based polyurethane finish it went on WHITE and did not change. I had to remove it and resand. What went wrong?
Apart from the fact one should never apply a water based coated over one that is oil based, it may be you had a bad batch of poly which would not dry properly.
Humid conditions can also affect drying.
For best results always use an oil based poly with oil base stains.