You ll find it in.
Poly wood floor has holes.
All polyurethane finishes are water resistant but flooring professionals advise using water sparingly if at all for cleaning.
Polyurethane hardwood floor finishes come in two varieties.
Sometimes the best strategy may be to hide them with wood stain and clear finish or just let them be and add to the character of the floor.
Alternatively use a touch up polyurethane repair kit following manufacturer.
Remove the excess wax and buff the floor.
Don t ever wax a wood floor that has been coated with a polyurethane finish this will make it impossible to re coat in the future without having to sand the floor first.
If paste wax will adhere to the finish you can use it to hide scratches and the wax is available in clear honey tone or brown to match most any wood floor.
These are emergence holes made by adult beetles leaving the wood.
I have seen what you described many times.
Most hardwood floors have been dried and aged but were part of a tree and then board at one time.
Apply a light coating of floor wax to shallow scratches using a soft cloth.
When filling nail holes in prefinished hardwood floors becomes necessary you have many options ranging from latex and epoxy fillers to homemade ones made with glue and sawdust.
Those from the factory and those applied on site.
Some are designed for general application where others are more specific.
Now back to the floor.
There are many different types of wood floor fillers.
The former is usually the more durable of the two.
All hardwood floors get filled during installation sanding finishing and use.