| Dear Ms. Builder: We have an older house with a tile shower. My
husband and children never dry it and the grout is a mess. I am considering
installing a synthetic cultured marble shower liner. Is this material durable
and easy to clean? - Barb N.
Dear Barb: I understand the problem you are having and a cultured
marble liner is an excellent, reasonably-priced option for you. We have a
shower in our basement and Mr. Grudge and the kids make a mess of it. I
installed a cultured marble liner last year and it literally wipes clean now.
Cultured marble is not really a totally synthetic product. It is made with
polyester resin and about 70% real marble dust. The marble dust creates its
uniquely attractive "deep" appearance. The range of colors is
endless. It requires much less care than real marble and it costs much less.
The polyester resin, used to bind the marble dust together, is extremely
durable and stain-resistant. Almost all boat hulls are made with polyester
resin, so it must be strong and waterproof. A clear final factory-installed
gloss coat is the most common surface finish.
With cultured marble, cleaning your shower will be a breeze. Just wipe any
dirt off the slick surface with a damp rag. Do not use any abrasive cleaners,
even one with "mild" abrasives. If your area has hard water, you can
clean off deposits with white vinegar.
Although cultured marble is durable, it can be scratched and chipped, so
don't let your husband wash off his golf clubs in there. A professional
repairman can repair the spot and buff it to a high gloss again. If a very
large area is damaged or a piece is actually cracked, it is not a simple repair
you can make at your home.
You will probably not find many major national manufacturers of cultured
marble. Most are smaller local manufacturers that sell in a fairly limited
radius around their plant. Your local kitchen and bath shops are one of your
best sources to find local suppliers.
With all the small local manufacturers, you may find it difficult to compare
quality, and the quality does vary. There is a trade association, Cast Polymer
Association (800-414-4272), that certifies local manufacturers. As always,
select a company that has been in business for a long while and talk to past
customers.
You will find it easy and fun to install the cultured marble yourself. It is
somewhat like cutting out a dress pattern. Clean off the shower wall
thoroughly. If you plan to use light-colored cultured marble, paint the wall
flat white. The color of dark spots on the existing tile can show through.
Cultured marble sands easily with a belt sander. No matter how well you
measure, the shower walls are never perfectly square. Scribe a line on the
piece to mark it and then use the belt sander to remove the excess. It should
be sized so that there is a one-eighth-inch gap at the corners and where the
pieces rest on the floor or tub.
Put in the back piece first and then the side pieces. It is easier to fit
the side pieces later because only one edge has to line up properly. Once
everything fits, remove the pieces and clean all the dust off the back with a
rag and alcohol. Use clear silicone caulk on the back of the pieces to attach
them to the wall.
Use small wooden spacers in the corners and along the bottom to maintain the
proper gap. Give it 24 hours to dry. Remove the spacers and fill in the gap
with color-matched silicon caulk.
Tools and materials required: saw, belt sander, long metal straight edge,
scribe, measuring tape, rags, wooden spacers, cultured marble, clear and
matching silicone caulk, alcohol
Send your questions to Ms. Builder, 6906 Royalgreen Dr., Cincinnati, OH 45244 or
visit www.dulley.com/msbuilder.
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