Use of improper cleaners.
They left an area on the floor not finuished.
Flooring that is not tightly secured sits just above the support in some spots.
Usually floor covering is a more precise term than finish floor since the flooring tends to cover another structural layer of flooring.
3 to 6 coats are ideal.
Focus on that one small area and ignore the rest of the floor.
If using a wax mop spread the wax using an overlapping side to side.
On floors that are not sanded finely enough the finish settles in the bottom of the sanding grooves but the tops of the grooves are covered with little finish.
Likely the floor wasn t sanded properly the finish was built up too quickly or the floor wasn t maintained correctly.
Wipe dark areas of the floor with mineral spirits.
Products like oil soaps paste wax and furniture polish should be avoided since they are notorious for leaving a hazy sticky buildup on your floor.
Spread an even thin coat over a 5 foot by 7 foot area.
The subfloor may not be well secured to the joists or the finished flooring material e g.
Apply wax with a finish mop.
If a recent home improvement project left you with an uneven finish it may be possible to lighten any dark spots and even out the floor s stain.
Still if you want the most durable hardwood floor finish it can last up to 25 years that s also low maintenance and you like the idea of installing wood flooring that s already finished.
Covering the floors with area rugs or paper will inhibit the flow of oxygen and air to the floor surface thus stopping the curing process.
Pour a small amount of wax onto the floor.
Be sure there is no finish or stripper left on the floor and that the floor is completely dry before appying new finish.
Once the finish is dry you can do minor repairs and that s easier than repairing a big area of overworked finish.
Strip your finish off the floor with a good floor stripper about every 6 months.
With a market full of all kinds of wood cleaning products picking the wrong cleaner gets easier and easier the types of cleaners that were effective years ago might not have a good effect on modern wood floors.
If you see a small puddle or a spot you missed 6 feet out don t touch it.
Also finish floor can be confused with the finish of a floor such as stains and lacquers.
A floor usually squeaks when walked on because the flooring finish or subfloor is not tightly secured.