Mont Marte Dimension Acrylic Premium
Phthalo Blue 75ml
The coolest, most intense blue: the green-leaning mixing powerhouse for clean greens and vivid deep blues.

Phthalo Blue is the cool, powerful, transparent blue in the Dimension Acrylic Premium range, based on PB15:3 (Phthalo Blue Green Shade). Where Ultramarine Blue is warm and red-leaning, Phthalo Blue is cool and green-leaning, making it the essential blue for mixing the cleanest, most vivid greens and the most intense, cold-spectrum blues. Its transparency gives it a luminous, staining quality that makes deep blue passages glow in thick impasto. Extremely high in tinting strength, a very small amount goes a long way in any mix. In the ultra-thick heavy body formula, it holds knife marks and texture without slumping. Dries to a gloss finish with a Blue Wool Level 7+ lightfast rating. Available in 75ml tubes and 250ml pots.

Pigment
PB15:3 (Phthalo Blue Green Shade)
Opacity
Transparent
Finish
Gloss (when dry)
Drying
20-30 min
1-2 hrs for thick impasto areas
★ Art Shed Staff Tip
Phthalo Blue has very high tinting strength: it will dominate any mix unless added in small amounts. When mixing greens, add Phthalo Blue to your yellow, not yellow to Phthalo Blue. A little Phthalo Blue in Titanium White gives the coolest, cleanest blue-white for distant sky and icy passages.
Perfect For
Clean vivid green mixing with yellow pigmentsCool deep ocean and deep-water passagesCold blue-white sky and icy atmospheric passagesBold contemporary deep blue impastoTinting white to the coolest possible blue-whiteTransparent glazing for intense blue depth

What Makes This Colour Essential

●
Consistency
Ultra-Thick Heavy Body
Phthalo Blue delivers the full ultra-thick Dimension Acrylic Premium body. Even this transparent, staining pigment holds sculpted knife ridges and impasto texture permanently in place.
★
Intensity
The Most Powerful Blue in the Range
PB15:3 has exceptional tinting strength. Phthalo Blue will shift any mix with only a small amount added. Use it sparingly and build up intensity gradually.
✓
Mixing
Green-Leaning for Clean Cool Greens
Phthalo Blue's green-leaning cool bias makes it the preferred blue for mixing the cleanest, most vivid greens. With Lemon Yellow it produces near-fluorescent yellow-green. With any yellow it outperforms Ultramarine Blue for green clarity.
●
Lightfastness
Blue Wool Level 7+ / ASTM I
Rated at Blue Wool Level 7 or above (equivalent to ASTM I), Dimension Acrylic Premium Phthalo Blue is formulated to remain unchanged for more than 100 years under museum-quality lighting conditions. Purpose-built for archival and professional work.

Mixing with Phthalo Blue

Phthalo Blue is the powerhouse mixing blue of the range. Its cool, green-leaning character and very high tinting strength make it essential for clean greens, cold blues, and deep tonal darks.

Combine this colour with...
Lemon Yellow → the brightest, most saturated yellow-greens: from sharp spring green to deep vivid foliage
Titanium White → a full range of cool blue-whites and sky blues from pale ice to deep pure sky
Magenta → clean vivid violet and blue-purple for the purest purple passages in the range
Burnt Sienna → cool deep dark neutral for cool-keyed shadow passages and deep backgrounds
Yellow Ochre → muted natural greens with an earthy quality for landscape foliage and ground cover

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.

What is the difference between Phthalo Blue and Ultramarine Blue?

Ultramarine Blue (PB29) is warm and red-leaning, better for purples, warm sky passages, and chromatic darks. Phthalo Blue (PB15:3) is cool and green-leaning, better for clean greens, cold sky passages, and intense transparent deep blues. Both are useful in a full palette.

Can I use Dimension Acrylic Phthalo Blue 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.

Why does Phthalo Blue overpower my mixes?

PB15:3 has exceptionally high tinting strength. Always add Phthalo Blue to your other colour in very small amounts. Start with a fraction of what you think you need and add more gradually.

How long does Dimension Acrylic Phthalo Blue 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 Phthalo Blue 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.

(PMDA0020)

SKU PMDA0020
Barcode # 9328577016073
Brand Mont Marte
Shipping Weight 0.1080kg
Shipping Width 0.060m
Shipping Height 0.140m
Shipping Length 0.030m

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