Sand the entire surface of the porcelain bathtub with fine grit sandpaper.
What grid sandpaper ti use on ceramic bath tub.
This will take the glaze off the tile but still leave the surface smooth.
Use the finest grit available that does the job.
The trick is to ensure that all the glaze is removed but none of the finish.
Sand the corners of the tub and where the tub meets the tile.
220 grit is recommended to sand ceramic tiles.
This will rough up the gloss so that paint easily adheres.
Do not use 400 grit sandpaper immediately after you have used 80 grit sandpaper.
If you want you can use a synthetic sandpaper such as aluminum oxide.
Use steel wool or sandpaper to scrub the tub three times vacuuming between scrubbings.
Sandpaper with 1500 to 2000 grit used with a light touch does less damage than coarser sandpapers but the wet or dry silicon carbide 3000 grit sandpaper might be all you need to clean or diminish the appearance of minor blemishes.
Either sand by hand with a sanding block or use a palm sander.
You can also use a paintbrush to do the job.
Use an orbital sander and sandpaper with a fine grit.
Remove all the dust with a shop vacuum cleaner.
Some opt to sand the tops of porcelain tile in an effort to simply clean the tile.
Wait 15 20 minutes before applying another coat.
Do one pass with 400 grit paper and a second with the finer 600 grit.
400 grit sanding block or orbital sander.
Using your orbital sander or by hand sanding begin sanding with 120 grit paper or sanding disks put your respirator on first.
Use light pressure with the sandpaper so you don t scratch or damage the tile s surface.
Sand the tile s surface with 180 grit sandpaper.
Next sand the entire bathtub using wet dry sandpaper.
Although light applications of the 220 grit sandpaper will certainly do the trick a better method is to use a toothbrush to apply nonabrasive cleaners as cleaners of this type will manage to clean not only the smooth surface but also the grout.
However if you need to change the size and shape of a ceramic tile you are advised to make use of a diamond wheel or a.
For professional results spray paint finish onto bathtub using an air compressor.
Sandpaper is an abrasive product that makes minor scratches on the porcelain surface.
Sand any rust areas and sand the dirty overflow area.
Sand the entire tub down well.