Q. I have a mint-green bathtub that dates to the late 1950s. There is a sizable chip in it and I have been unable to find any kind of patching material that is close to the color. Can you help? — J.

Q: Our porcelain bathtub has a couple of deep chips in the bottom where a wrench was dropped during plumbing repairs. Is there any way to fix this? A: There are products available to patch porcelain ...