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little lumps in hard wood with polyurethane

2K views 4 replies 5 participants last post by  RhodesHardwood 
#1 ·
I did a small amount of red oak flooring myself. Came out good. I sanded it flat. When I did the first coat of polyurethane I felt some grainy things in it. I re-sanded it smooth with 150 grit sand paper, vacuumed it the best I could. It felt really smooth to the touch. I did a second coat and applied it lightly with the lamb wool applicator. Its still drying, but it looks like it will have same tiny lumps in it.

What would I be doing to cause this? Also is there a quick way to buff it smooth without doing another coat of polyurethane because I really don't like the smell.
 
#2 ·
the first coat usually comes out a little rough. With it being a floor you are going to want to do at least 3 coats of poly. Sanding lightly between is common practice but is not always required. You could have had some dust in the air still kicking around when you applied the second coat. Make sure your brush is clean. It could also be air bubbles in the poly. If it is you can use a thinned coat to help rid them. One you get a few coats on the floor and it is cured completely you can use a rubbing compound to buff the floor. But be careful not to make it too slick...it is a floor.
 
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