We recently installed marble countertops in our kitchen, and it's been a
Almost immediately water-spots began to form, taking off the sealer.
Even worse, a little tomato juice fell onto the counter, and it was as if
we'd put paint remover on it. Big ugly dull spots wherever the tomato juice
fell -- and it was there for just a few minutes.
We called the installer, who came out and used a different sealer. This seem
to withstand water fairly well, but the tomato problem is as bad as ever.
Has anyone else had similar experiences?
Do you mean granite?Marble is way too soft to make a counter trop
I just put a granite top on the bar out by the pool so I am fix'n to
learn about granite. There is no way I would have bought it but
someone gave me a bunch.
I am learning how to polish it right now.
I'm sure he means exactly what he wrote. Tomato juice would not harm granite,
but it would
definitely etch marble. So would vinegar, lemon juice, or anything else acidic.
Nonsense. It's harder than Corian or Formica which have been used successfully
countertops for decades, and it's waaaaay harder than wood (which has been used
The reason marble is unsuitable for use as a kitchen countertop is that it is
etched by even weak acids. Common foods which would damage a marble countertop
spilled on it include:
- almost anything containing tomatoes
- anything containing citrus fruits in any form, such as orange juice or
lemonade -- and don't
even think about eating a grapefruit over a marble countertop...
Granite has none of these deficiences -- but that's the result of its very low
reactivity to acids,
not its hardness.
No big surprise. Marble is very readily etched by acids. Tomato juice is an acid.
Yeah, pretty much everyone who ever put a marble countertop in their kitchen.
harsh, but that's what happens when you don't do your research: you wind up with
something unsuitable. And I bet you spent a s**tload of money on it, too...
Polishing it is the only way to remove the marks from the tomato juice -- those
cosmetic marks, the acid in the tomato juice has actually dissolved some of the
Once you have it polished nice and pretty, remove it and sell it for whatever
you can get out
of it, and replace it with something more suitable for a kitchen -- which is
On 9/11/2012 12:21 AM, firstname.lastname@example.org wrote:
Not utter rubbish, in fact mostly true.
The pure stone tops, granite and marble, are calcium carbonate which is
attacked by acidic foods - granite less so than softer marble.
Good finishes will make them more stable.
Lot of products on the market today are plastic with high stone content
that look similar but are far more impervious to acids. That too would
depend on the plastic binder where I believe acrylic resins are better
Pure synthetics like Corian are more chemically stable and can be repaired.
You are right.
I made the common mistake of repeating something I read on the web and
should have known better.
Marble is mostly calcium carbonate which makes it very susceptible to
Granite is still susceptible but not nearly as much.
Corian composition, I am very familiar with and it is
polymethylmethacrylate with alumina filler making it the most kitchen
Granite consists of numerous minerals. Among them...
feldspars (there are various)
The most dominant is feldspar. Both it and quartz are much harder than
calcium carbonate. Calcite is calcium carbonate but there isn't much of it.
Most of the "granite" being sold isn't granite...it is crystalline igneous
rock (as is granite) which can have many differing combinations of the above
and other minerals.
Marble isn't useful but there is nothing wrong with granite and it makes a
*much* better surface than Formica (gack). People who can't afford granite
use granite slabs for baking and prep. Having a *large* surface makes it all
Irrelevant. They suck for other reasons. I'd use Corian in a bathroom but
not a kitchen.
On Tue, 11 Sep 2012 21:31:58 -0400, " email@example.com"
Tell me more... I'm thinking of replacing my Formica Kitchen counter
tops with something but have not yet looked into the pros and cons of
the various options. The only thing I'm thinking specifically is that
I don't want granite based on comments I've read there and there that
it stains too easily.
Agreed but it works better in the bathroom. I like the hard look and feel in
the kitchen. OTOH, we like the granite in the bathrooms in the AL house and
will be upgrading the baths in the new to granite as we go along.
Amazngly, sharp enough for spouse (she doesn't use the real kitchen
knives, just the Sears steak knives my cousin thrice removed from Seattle
gave us before our move to the Sates.
It is. It is a protest from the Lukoil station holders. They apparently
have to pay 20-25 cents/gal more than everyone else to whoever plays
Putin in Jersey. On the radio one station holder said he never buys his
own gas, but goes to one of the cheapo stations.
Would be difficult to see me buying gas from a Russian outfit ...
I haven't tried chopping with a hatchet, but cutting up heads of lettuce
doesn't seem to hurt. Remember, materials like Silestone are quartz
embedded in a hard resin.
Also note that there was a chip in my counter that needed repair within a
week of installation. Less than 1 square inch, and fairly shallow. They
came with perfectly color-matched resin, and it is still very difficult to
locate after more than 10 years. The seam between the 2 pieces is now
noticeable, but barely.
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