Mars Crimson Oil Paint

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Mars Crimson is dark bluish red oil color that makes cold red tints. Their chemical and physical properties are similar to the natural iron oxides. Read the complete description.

Mars Crimson is a dark, bluish-red oil color that makes cold red tints. Originally a brand name in the late 18th century, Mars colors is now the common name for synthetic iron oxide pigments. Their chemical and physical properties are similar to those of natural iron oxides. Mars colors are permanent pigments with good tinting strength and are good driers for oil paints.



Mars Crimson is the bluest synthetic red iron oxide pigment we could find. We grind it in pale, refined linseed oil with a small amount of bodied linseed oil to prevent it from becoming matte upon drying. The bodied oil, however, gives it some tackiness and drag under the brush. This can be easily remedied by adding a small amount of linseed oil or Oleogel to the paint on your palette.


Composition and Permanence

Mars Crimson
Binder:Linseed oil
Pigment Information
Pigment:Synthetic Red Iron Oxide
Pigment Classification:Synthetic inorganic
Colour Index:Pigment Red 101 (77491)
Chemical Name:Ferric oxide, Iron(III) oxide
Chemical Formula:FeO2
CAS No.1309-37-1
Tinting Strength:High
Drying Rate:Fast
ASTM Lightfastness:I - Excellent
Safety Information:Based on a toxicological review, there are no acute or known chronic health hazards with the anticipated use of this product. Always protect yourself against potentially unknown chronic hazards of this and other chemical products by avoiding ingestion, excessive skin contact, and inhaling spraying mists, sanding dust, and concentrated vapors. Contact us for further information or consult the MSDS for more information.


For a detailed explanation of the terms in the table above, please visit Composition and Permanence.


Some separation of pigment and oil may occur in Rublev Colours Artist Oils and is a natural process when no wax or stabilizers are added to paint to prevent this from occurring.

All images of color swatches on this website are only approximations of the actual color of the oil paint. We have carefully matched the color in these pictures on calibrated color monitors to the actual color. However, because of the wide variance in color monitors, the results may vary.

Color Swatch Note: The color swatch was created with a thick application (left side) of color and a tint (right side) made with equal parts of color and titanium white and applied on acrylic primed cotton canvas.

Drawdown Note: The image of the "drawdown" contains a pre-mixed paint film of 6 mils (0.006 inches) thickness applied to a standard test card to examine color consistency, opacity, and other qualities. The drawdowns show the color full strength (mass tone), on the left, and mixed in a 1:2 ratio with titanium white on the right. The bottom area of the drawdowns is scraped to show undertones.

More Information
BrandRublev Colours
VendorRublev Colours
Processing TimeUsually ships the next business day.
Pigment TypeInorganic, Synthetic

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Mars Crimson Oil Paint
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