Polyurethane coatings do a number of things. First, they seal the pores of the wood making the wood unable to absorb moister and thus preventing rot. Secondly, urethane allows the floor to be cleaned more easily by providing a smooth surface. Third, they help to prevent scratching or gouging of the floor by providing a 'slippery' surface that objects can slide across. Fourth, some urethanes have a built in UV inhibitor which can keep the wood from discoloring.
flooring
You would use a vacume
No! Polyurethane needs a porous surface and because pergo is not, you would only ruin the floor.
Yes, but be careful of fumes, it can affect you
After applying polyurethane to floors, especially oil based, it takes a minimum of 24 hours before you can think about walking on it. As long as it is putting off an odor, it is still curing.
Polyurethane will give a long lasting easy to apply finish. Use a water based polyurethane ans clean up will be much easier. You should get years of wear from a good polyurethane finish.
No, polyurethane is meant to be applied to a porous surface. Pergo is laminated and has none. Using the product will cause permanent damage.
Yes.You first need to "screen" it. Just mean a very light sanding to remove the top film and roughen up the service to give the new layer something to bite into. We do this in houses all the time. 4 or 5 years after we do someones floors, we will come out and screen the floors and put on just one coat.
Verathane polyurethane is the best product easily available to the public.
Yes you can, however, ensure that this is the best option before executing. I do this to reinforce the self-stick vinyl tile and laminate flooring in my basement and it works great. I got tired of dropping a knife or something creating a huge gash requiring replacement. The polyurethane layer has protected my floors for years. Occasional reapplication of polyurethane in spots where needed making it look new brand new again versus cutting out and re-sticking a piece of the laminate floor that will never look as good as new...I use the former. There are a lot of nay-sayers out there about polyurethane on vinyl tiles and laminate floors, but I've always had great success.
No, unless you plan to sand the floor. Prefinished floors are already polyurethaned.
Minwax makes a product called Polyshades that has stain and polyurethane mixed together. It is not meant for floors. Adding stain to polyurethane will cause the chemicals to be deluded. It will not bond correctly and possibly not dry at all.