Bath Enamel. It is specially formulated for the task.
You can paint your tub any color you like but white or tan seem to be the popular colors.
I'll recommend a white and a little touch of your preferred color, white is simplicity and you'll be able to see the dirt easily so you can always check your tub if it needs some cleaning.
I have painted and repainted an old claw bathtub outsided, I paint it a different colousr every few years and I use tremclad rust paint. It hold up well in direct sun, 35C below weather and rain. I'm considering using this paint for my indoor bathtub.
Crayola offers some bathtub paint, one of their kits includes coloring sheets that stick to the bathtub wall. You can also make your own bathtub paints. Here is a link to a tutorial using safe everyday household items: http://www.ehow.com/how_4469283_make-bathtub-paints.html
YES
with white spirit. (its a fact)
If you want to buy dirrent interior paint colors go to the housebeautiful website. You can find many interior paint colors there. They have many catogories, so its easy to find the interior paint colors you want.
If you need to refinish a bathtub, you will probably need some appliance paint. You can get this by ordering it online from Amazon. Their website is www.amazon.com.
Enamel or Melamine .
It colors it.
To remove colors, for paint, you use the paint remover. Or if that doesn't work, use color white-out. :)
Easy, mix the colors
Prisma colors are colors that have harder lead so that artist could paint without the lead breaking and they paint more pretty than the other normals colors
via push it