NEED HELP!!! sanding engineered wood floors

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  #1  
Old 01-06-14, 05:24 PM
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Question NEED HELP!!! sanding engineered wood floors

I have polyurethaned my engineered wood floors many times always using a foam brush and it always turned out pretty well but took a lot of time. The last time I did it I tried a new method someone suggested to me by using a foam roller. This person told me it might show bubbles when I do it but not to worry the polyurethane would settle and dry smooth. Well I was nervous when I seen these bubbles but I stayed the course and let it dry..... BIG MISTAKE. . Now I have a bubbled look on my floors that I can not get rid of. I tried hand sanding with 120 grit paper 5 times and I still see these bubbles so I must not be getting all the way thru the poly coat. So I need any help I can get on how to sand these bubbles away without taking the factory stain with it. I tried a belt sander on extra pieces and found out quickly that will remove the factory finish. Does anyone have any suggestions?
 
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Old 01-06-14, 06:35 PM
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Knock that guy in the head that told you that. Foam anything should not be used to poly.
Use a pad like this.
Ettore 10 in. Oil-Based Floor Finish Applicator with Pole-33110 at The Home Depot

Guess your stuck with having have to use a courser grit.
 
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Old 01-06-14, 06:49 PM
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Would anybody know if a orbital sander using 220 grit would work without sanding too deep?
 
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Old 01-07-14, 03:18 AM
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220 might be too fine to sand out the bubbles. I'd try 150 grit and either go up or down as needed. Don't use a belt sander! An orbital sander will do fine, it just might take awhile.
 
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Old 01-07-14, 04:58 AM
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You can test in an inconspicuous area, but I think that once you do an initial sanding and open up all the bubbles, that subsequent coats of poly will blend the defects into the finish.
 
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Old 01-07-14, 05:30 AM
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thanks for the suggestions! I will try the orbital sander with 150 grit and go from there. I will let you know how it goes
 
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