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Ochre
(pronounced o-ker) is a natural mineral earth pigment. Chemically, it is
a hydrated ferric oxide, chemical formula: FeOOH. Ochre is inorganic, chemically
inert, non-reactive with cement or mortar, nontoxic and classified simply
as a nuisance dust due to its fine particle size.
Ochre is mined and processed in Cartersville, Georgia
at the only year-round ochre mining and processing operation in the United
States.
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Ochre
can be used as is to achieve a range of colors from brown to yellow-brown
to buff simply by varying the addition rate. It may also be used as the
base for producing a broad range of earth tone colors ranging from red
to dark brown and black to yellow.
Ochre has proven to be a cost effective colorant in:
- Mortar and Brick
- Roofing Granules
- Concrete and Concrete Block
- Paper
- Ceramic Tiles
- Textiles
- Cosmetics
- Inks, Paints and Stains
- Sealers and Caulks
Specific applications include:
- Driveways, Patios and Sidewalks
- Golf Cart Paths
- Swimming Pool Decks
- Tennis Courts
- Stamped Concrete
- Parking Areas
- Landscape Blocks
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Ochre
actually improves the strength of both concrete and mortar. It has been
tested using ASTM Spec. C-39 "Standard Test Method for Compressive
Strength of Cylindrical Concrete Specimens" and C-91 "Standard
Test Method for Compressive Strength of Hydraulic Cement Mortars".
Copies of the test data are available upon request.
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Ochre is shipped directly from our production facility
in Cartersville, Georgia in 50 lb. paper bags and 1-ton super sacks. Ochre
may also be purchased from one of our distributors located across the U.S.
Please contact us for the location nearest you.
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Cost
Performance: Economy and versatility are the
primary reasons why ochre pigments have enjoyed over 80 years of success
in the pigment industry.
Economical: Ochre is the
most economical buff colorant available today. Ochre based blends repeatedly
out perform other colors on a regular basis. On jobs ranging from a residential
driveway to a 100,000-plus cubic yard drainage canal, ochre has been chosen
because of its economy and performance quality.
A "typical" concrete project using 5 sacks
of cement per cubic yard of concrete will require less than $10 worth
of ochre pigment per cubic yard ($.12 per square foot on a 4" slab).
"Typical" mortar costs are $.85 per 94 lb. sack of mortar. Ochre
truly is "The best bargain in the pigment industry."
Permanence: Because ochre
is an iron oxide, it is a permanent color. It will not fade or wash out.
The cave painting of prehistoric man, as well as the earth pigments used
extensively in Renaissance art, attest vividly to the beauty and permanence
of natural pigments.
Ease of Use: Ochre blends
easily and uniformly in both mortar and concrete.
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NRO Ochre is a pure natural iron oxide with no fillers
or extenders. Consistently uniform from bag to bag, ochre is processed
and controlled within exact physical and chemical limits. State of the
art color measuring and monitoring equipment and our dedication to quality
are our assurance of a superior product.
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