The paint on my bathtub has been ripped off so much like this:
What should I do to fix this?
Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. It only takes a minute to sign up.Sign up to join this community
Assuming this is a cast-iron tub in decent condition below the surface, it can be refinished to look like new. Here's an article from This Old House that explains one process. There are likely vendors who will come to your house to refinish the tub, as well as DIY products. For any repair approach, it's vital to properly prepare the surface by removing the prior paint attempt, patching any deep scratches, and sanding thoroughly to ensure good bonding of the new enamel.
Companies do recoat tubs much cheaper than replacement. The problem is the tub is porcelain, Paint usually won’t last long. Here is one product that states it works on porcelain. There are other products this is just 1.