Remove any anti-slip strips with a cleaner and degreaser. Wash the tub with an abrasive cleanser. Scrub the tub with an abrasive pad and Lime-A-Way.
Step 2: Sand the Tub
Sand the tub with 400-600 grit wet sandpaper. There are a couple of reasons for this:
First, when you sand the surface you'll be removing any grime or gloss that's left over from the cleaning.
Second, when you rough up the surface, it will give you good adhesion for the coating.
Tip: When you're sanding, it's best to use wet sandpaper so the grit can be rinsed away while you're working.
Step 3: Apply the Paint
Mix the epoxy and paint it on with a brush and roller.
Note: Small bubbles will appear on the surface as you paint, but as it dries its self-leveling properties will eliminate the bubbles.
Brush in one direction only.
Brush on a couple of smooth, thin coats.
Feather the edges as you paint to avoid a hard line between painted areas.
Apply two light coats one hour apart.
Step 4: Caulk the Corners
Caulk around the tub, corners of the tile walls and around the corner shelves.
Tip: You can use denatured alcohol for cleanup when caulking.
i hope it will be useful?
Something like that is better left to the professionals. There's companies that reglaze bathtubs and they do a great job. The existing surface has to be etched with an acid compound and the new finish is applied with a spray gun. If done right the tub will look brand new.
I had mine done a couple years ago and it looks great. Was done in a day and cost about $400.
A new tub with installation would of been about $2,000 not counting broken tiles.
It is easy to paint a bath - unless you are still intending to use it to have bath in, In that case make sure you get the right paint for your type of bath, and follow the instructions about treating the surface before painting.
They sell kits at Home Depot but you really need to know what you are doing, its an epoxy enamel that only can be worked with for about 20 minutes after its mixed. If you get one drip or uneven spot you're stuck cauese the stuff dries really fast.
There are hundreds of kits available but you need to know if it is cast iron, composite or fiberglass. Using the wrong prep methods can ruin your day and your tub.
they are paintable ,but do not use a cheep paint . an epoxies paint is used on cast iron and gel coat on fiberglass