Replies

1. 
   j_sloan | Jun 12, 2000 11:08pm | #1

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   I think the white residue is just poly-dust after you have sanded it. I usually wipe this off with a lint free paper towel or cloth dabbed in mineral spirits. In fact you should do this before you apply any additional coats of polyurethane.

1. 
   CStanford_ | Jun 13, 2000 12:37am | #2

   *Try using mineral oil or dishwashing liquid as the lubricant. Try on some scrap first. I don't work with poly much.....

1. 
   Rob_Millard | Jun 13, 2000 01:42pm | #3

   *I use very little polyurethane, but I use a great deal of varnish. My method is to use a high quality badger hair brush. Sand with 320 grit paper after each coat, this is important because even a good brush leaves ridges, that will show up as witness lines in the final finish. After the last coat has had time to dry hard (I let varnish dry 1 ½ weeks) sand with 800 grit paper with soap and water as a lubricant, until the finish is uniformly dull. Then using mineral oil mixed with a small amount of mineral spirtits as a lubricant rub the finish down with steel wool and 4F pumice. Follow that with rottenstone, for a deep rich shine, that is not overly glossy. Clean the surface with naptha in between the pumice and rottenstone, and after your satisfied with the sheen. Follow that with soap and water, to clean the surface. It sounds like a lot of work but it goes quickly. I also use Behlen Oz Polish, it is an excellent product, that imparts a nice luster.