OT-Clear coat rocks?

Have a question or want to show off your project? Post it! No Registration Necessary.  Now with pictures!

Threaded View
I'm going to be putting stone inside the house around the wood burning
fireplace insert. The stones are all ones that my wife and I, mostly
my wife, have collected here on Whidbey Island. These stones of course
all have the natural matt finish that they got from rolling around in
rivers, on the beach, and in glaciers. But my wife wants them to have
a glossy finish. So, I'm asking the collective experience here if
anyone has done this. I'm wondering if maybe there is a clear epoxy
finish like what is used on garage floors. Anyway, I'll be using the
Google but there's nothing like the voice of experience.

Re: OT-Clear coat rocks?
Eric R Snow wrote:
Quoted text here. Click to load it

Whatever you do, DON'T use the stones where the chimney
penetrates through the roof.  Some IMBECILE built the entire
chimney facing of our house, from the basement all the way to
the top of the flues, out of some kind of limestone and
fossilized coral stuff.  What was he (not) thinking??!!??
The old coral is as porous as a sponge, and the rest of the
stuff chips and weathers a lot, constantly leaving gaps where
water can get in.  When the roof needs to be replaced (soon),
I'm seriously thinking of having a bunch of it chipped out and
something, ANYTHING, put in in the area where it meets the roof.
Probably need to replace the whole facing above the roof with
something that weathers well and is non-porous.

Sorry about the rant, just wanted to warn you of this possible
debacle.  But, I'm sure any rational homeowner would know better.


Re: OT-Clear coat rocks?

Quoted text here. Click to load it
Thanks for the advice Jon. However, it doesn't apply im my case
because this stonework that I'm doing is only cosmetic and on the
inside wall. The outside stonework is also just cosmetic and was done
by a professional. The chimney is wood and hollow. The real chimney
inside the wood is insulated stovepipe. Where the chimney pierces the
eaves the roof runs right up to the chimney and there is flashing to
prevent water penetrating the chimney/roof interface. This flashing
directs any water that might flow between stonework and the chimney
onto the roof. In fact, the flashing extends up to and over the top of
the wood part of the chimney. I believe this is code now where I live.
In any event, the county inspector actually went up a ladder to
inspect the chimney.

Re: OT-Clear coat rocks?
Eric R Snow wrote:
Quoted text here. Click to load it
Well, that's the problem.  I'm sure this job WAS done by a
"professional", ie. a mason who subcontracts this kind of work
from the general contractor.  I don't know if he knew this could
be a problem, but was just doing what the plans ordered, or he
winged it on his own.  The problem is not just water getting
into the facing, I believe the water gets all the way inside the
chimney, splashes down inside the thing until it hits a rock,
and then comes out wherever it finds a crack.  I don't know what
the internal construction of the chimney is, all I can see is
the facing and the clay chimney liners.  What is between them
(and there is a LOT of hidden volume) is a mystery.  I'm
guessing a whole lot of cinderblock, but there is no other block
used anywhere on the property, so I have no real idea.

It sounds like your construction is quite a bit different than
mine.  I'm sure my structure can't be wood, as we're talking
about tons of stone, the thing is 6 feet by 3 feet, and about
30 feet tall.


Re: OT-Clear coat rocks?

Quoted text here. Click to load it

I used a product called Mex-Seal to seal mine when I built one of my houses.
It did great, and it lasted shiny for ten years until I sold the house.
Take it slow, and paint it in light coats, and wait about eight hours
between.  You don't want any runs.  Mask anything you don't want it on, as
it floats in the air.  Good stuff, or at least I liked it.


Re: OT-Clear coat rocks?
Eric R Snow wrote:
Quoted text here. Click to load it

I haven't coated any rocks, but I spilled a little clear epoxy on my concrete
garage floor a few years ago, and I still think there is a puddle of water on
the floor every time I go out there.  I don't remember the name of the product,
but I bought it at my local Home Despot.  It was just a quart kit used for table
tops, etc.  Not sure if heat would be an issue.


Re: OT-Clear coat rocks?
On Sat, 30 Jun 2007 04:30:43 GMT, snipped-for-privacy@whidbey.com (Eric R Snow)

Quoted text here. Click to load it

I used an inexpensive water based sealer on the red brick pavers in an
unheated sunroom which worked very well to brighten the color of the
bricks, though I wouldn't call the finish glossy. More like what you'd
get if you wet the bricks. The sealer looked and smelled like thinned
(Elmer's) white glue. I haven't noticed any difference in appearance
after 15 years or so.

If she really wants glossy, I think the epoxy bar top finish mentioned
elsewhere may be the way to go. Be very careful if you do go that
route; an old friend who does high end stone masonry built a hot tub
when he was starting out and sealed it with epoxy. The epoxy clouded
badly, presumably due to moisture trapped in the fresh masonry, and it
took a enormous amount of labor to remove it. Experiment first.

Ned Simmons
Ned Simmons

Site Timeline