The fibers are very light and have blown away due to normal air infiltration and air exchange in your home.
How to glue sand to the floor.
A rented floor sander or a floor buffing machine with a sanding disk should get the job done.
If the glue comes off easily enough you may be able to remove all of it with this machine.
For a floor in better condition a lighter 60 or 80 grit is better.
Draw your design onto the wood.
In those circumstances reach for sandpaper.
Wipe off any excess glue with a damp cloth before adding the sand.
A professional floor buffer or sander equipped with a sanding disc can remove any existing paint stains discoloration or small imperfections from the floor s surface.
Spread the glue in a light layer not too thin or too thick.
Glue the decor along the top of the board and the hooks directly below installing the finished rack on the wall by your front door or in a bedroom.
Use an aggressive grit to get the bulk of the glue off and then switch to a finer grit in the 300 s range should suffice to finalize the sanding across the floor.
Sometimes the sandpaper can be a bit tight and hard to install.
Attach a 24 grit sanding disk to a handheld disk sander and sand the floor in sections.
Use a scraper to dislodge the glue and wipe it away using paper towels or an old rag.
Use plastic table coverings for easier clean up.
While bleaching and drying out in the sun works i researched by painting the sand dollars with a mixture of water and school glue the sand dollars will be more sturdy.
I sand the floor to 60 grit empty the dust bag then sand the floor with 80 grit.
Add white pva glue over the design with a small paintbrush.
If that happens wipe a little bit of fine sawdust on the inside of the belt to help the belt to slide on.
Repeat until the wood is clean and free of glue.
But the advice i would give to a novice is also empty the dustbag at 80 as well then do the 100 grit and use the 100 grit dust to fill the floor and the 80 grit dust if your run out of 100 grit dust.
Make the layer slightly heavier if your sand has larger granules.
This is why it s a good idea to sand the floor.
If your floor needs a lot of sanding start with a rough 40 grit paper.
Before you can add a colored stain followed by a coating of epoxy urethane or wax to make a concrete floor shine you must prepare the floor s surface.
You ll sometimes encounter a glue patch that won t come up or is in a spot that makes it inconvenient to either freeze or heat.
Sand the glue away.
That way you have only fine dust from the 80 grit.