The heat will melt the old finish and this clogs the sandpaper.
What grade of sandpaper for hardwood floors.
Initial efforts in hardwood floor sanding.
The lower the grade the rougher the sandpaper.
More facts on sandpaper types.
Use it for extremely rough surfaces when wood has dips gouges.
Sandpaper for power sanding is sold in.
Protect yourself from the dust by wearing a dust mask and safety goggles.
Can take out the scratch from 120 grit or 100 grit sandpaper if necessary.
This is usually the final grit for most standard hardwood floors.
Use a coarse grade in the beginning unless the floor is in very good condition.
Be sure the paper is properly installed and be prepared to change it regularly.
It can be made from the grains of a natural mineral called garnet or from synthetic ones like aluminum oxide alumina zirconia or silicone.
A higher number means a finer softer sandpaper grit.
Decide on the grade of sandpaper that you are going to need.
For example 60 grit sandpaper is the roughest sandpaper typically used on wood.
This is usually the final grit for maple birch or other particularly hard woods and for any floor that you would like to stain.
Takes out 60 or 80 grit scratch.
As you begin sanding remember never to turn the sander on while the sandpaper and drum are touching the floor.
A lower number means coarser and more abrasive.