Mont Marte Dimension Acrylic Premium Raw Umber 75ml

Mont Marte Dimension Acrylic Premium

Raw Umber 75ml

Cool earthy brown: the natural shadow tone for cool-keyed painting and neutral dark mixing.

Raw Umber is the cooler, greener-leaning umber in the Dimension Acrylic Premium range, based on the raw (uncalcined) form of PBr7. Where Burnt Umber is warm and red-tinged, Raw Umber is cooler with a faint olive or greenish cast, making it the natural shadow colour for cool-keyed subjects, northern-light interiors, and landscapes where a warm-biased dark would feel out of place. It is particularly valuable for cool shadow passages in portrait and figure work, and as a base for mixing cooler neutrals. Fully opaque and reliable, it covers in one pass. In the ultra-thick heavy body formula, it holds knife marks and impasto texture without slumping. Dries to a gloss finish with a Blue Wool Level 7+ lightfast rating. Available in 75ml tubes and 250ml pots.

Pigment

PBr7 (Raw Iron Oxide Brown with Manganese)

Opacity

Opaque

Finish

Gloss (when dry)

Drying

20-30 min

1-2 hrs for thick impasto areas

★ Art Shed Staff Tip

Raw Umber is the best single underpainting colour for cool-keyed portraits painted in northern or overcast light. Its slightly olive, cool undertone reads as natural shadow rather than warm earth when it shows through subsequent cool flesh passages. It also makes the most muted, neutral darks when mixed with Paynes Grey.

Perfect For

Cool-keyed portrait shadow passagesNorthern-light and overcast-sky landscape darksMixing cool neutral darks with Paynes GreyUnderpainting for cool-toned subjectsShadows on stone, concrete, and cool architectureMuted earthy background and toning passages

What Makes This Colour Essential

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Consistency

Ultra-Thick Heavy Body

Raw Umber delivers the full ultra-thick Dimension Acrylic Premium formula, holding palette knife ridges and brushstroke marks in permanently sculptural form.

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Tone

Cool Earthy Dark Brown

The uncalcined PBr7 in Raw Umber gives it a cooler, slightly olive-greenish cast that distinguishes it from the warm red-brown of Burnt Umber. It is the natural shadow colour for cool-keyed subjects.

✓

Coverage

Fully Opaque

Raw Umber is fully opaque, covering any ground in a single thick application and providing a consistent cool dark tone for toning and underpainting work.

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Lightfastness

Blue Wool Level 7+ / ASTM I

Rated at Blue Wool Level 7 or above (equivalent to ASTM I), Dimension Acrylic Premium Raw Umber is formulated to remain unchanged for more than 100 years under museum-quality lighting conditions. Purpose-built for archival and professional work.

Mixing with Raw Umber

Raw Umber is the cool counterpart to Burnt Umber. Its slightly olive cast makes it the natural choice for cool shadow mixing and neutral earthy tones.

Combine this colour with...

Titanium White → cool greyish-brown from mid-tone to pale for stone, overcast shadow, and muted ground

Paynes Grey → very deep cool neutral dark for the most muted, cool shadow and dark background passages

Yellow Ochre → warm mid-brown for a naturalistic earthy tone that sits between cool and warm

Ultramarine Blue → deep cool neutral for landscape shadow and the darkest receding passages in distance

Lamp Black → very dark cool brown for deep shadow passages and dark ground textures

About Mont Marte Dimension Acrylic Premium

Founded in Australia in 2002, Mont Marte creates high-quality fine art materials for students, hobbyists, and professional artists worldwide. Dimension Acrylic Premium is their flagship heavy body range: an ultra-thick, high-viscosity acrylic formulated for impasto work, palette knife painting, and any technique that demands a paint that holds its shape. With a Blue Wool Level 7+ lightfast rating (equivalent to ASTM I), the 48-colour range is built for serious, permanent work. Available in 75ml tubes and 250ml pots.

When should I use Raw Umber instead of Burnt Umber?

Raw Umber is the better choice for cool-keyed subjects, overcast-light landscape, and cool portrait shadow. Burnt Umber is better for warm-lit subjects, rich timber and wood tones, and warm earth passages. Both have a place in a complete palette.

Can I use Dimension Acrylic Raw Umber with a palette knife?

Yes. Palette knife application is one of the primary uses for Dimension Acrylic Premium. The ultra-thick formula sits firm on the knife, deposits a clean hard-edged layer on the surface, and holds the shape of each mark as it dries without slumping. Apply straight from the tube for maximum texture and sharp ridges.

Is Raw Umber useful for landscape painting?

Yes. Raw Umber's cool, slightly olive tone is a natural fit for dry, overcast, or cool-keyed landscapes. It works as the shadow dark for grey stone, weathered wood, and cool shadow on earth.

How long does Dimension Acrylic Raw Umber take to dry?

Thin applications dry in 20-30 minutes. Heavy impasto builds applied with a palette knife can take 1-2 hours to dry fully. Drying time extends in cold or humid conditions. Do not apply a second thick layer over the first until the lower layer has dried completely to the touch.

What surfaces can I use Dimension Acrylic Raw Umber on?

Canvas, board, wood, air-dry clay, plaster, cardboard, paper, leather, and most rigid plastics. For best adhesion on non-porous or slick surfaces, apply a coat of gesso or acrylic primer first. Dimension Acrylic Premium is compatible with all Mont Marte acrylic mediums, gels, and impasto pastes.

Art Shed Online is an authorised Australian stockist of Mont Marte products. All Mont Marte Dimension Acrylic products are sourced through official distribution channels. We ship Australia-wide.

Available at Art Shed Online, Australia's specialist art supply store. Questions? Contact us at customerservice@artshedonline.com.au.

(PMDA0037)

SKU	PMDA0037
Barcode #	9328577016240
Brand	Mont Marte
Shipping Weight	0.1080kg
Shipping Width	0.060m
Shipping Height	0.140m
Shipping Length	0.030m