On Thu, 24 Jul 2014 18:03:03 -0400, ralf wrote:

Replacing a porcelain steel tub and the ceramic and walls, which are 30+
years old.

Undecided on a product from American Standard, which is a material
called Americast with porcelain over it, or an acrylic tub. Cast is out
of the question at this point because of the weight and small area it's
going into. Comments on negative or positive of the two choices would be
welcome.

The existing walls are regular drywall, no green/blue board and has
never deteriorated. Will be replacing the drywall, however everything I
read says to go with cement board. I've looked at numerous pictures on
the net, and people are still using green and blue board. Is it really
necessary to use cement board?

Thanks


I replaced an enameled steel tub with Americast about 25 years ago.
Still looks new, although you have to be careful not to use any
abrasive cleansers. Use cement board if the shower is going to be used
to any degree. That the drywall held up for you would seem to indicate
more baths than showers.