French Ultramarine

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𝐅𝐫𝐞𝐧𝐜𝐡 𝐔𝐥𝐭𝐫𝐚𝐦𝐚𝐫𝐢𝐧𝐞
Professional Handmade Watercolour

Swatch Painted on: Saunders Waterford, White, Rough, 100% Cotton, Mould Made, Acid Free, 300 gsm Watercolour Paper

Also Known As; Ultramarine Blue, French Ultramarine (Red Shade)

A rich transparent blue. Created by French chemist Guimet in 1828 as a synthetic but chemically identical alternative to the expensive pigment derived from Lapis Lazuli.

Our Process

Our process starts by using only the finest hand-picked Kordofan Gum Arabic Lumps and carefully blending with distilled water, this mixture is left for a few weeks until fully dissolved, we then strain this mixture through unbleached Muslin bags to remove any impurities like straw and sand which is naturally found on the gum when it falls onto the ground from the Acacia tree

Once fully strained we then add in the vegetable glycerine, a touch of biocide and gently blend using one of our mixers to ensure a smooth, fluid consistency

Once made this base mix then undergoes two weeks of quality control testing to ensure the highest possible quality

We then take the finished base mix and carefully mix in the dry pigment power(s) and any other auxiliary materials required to achieve the best possible dispersion of the pigment

Once the pigment is fully “wetted out” into a paste we carefully run this over our triple roll mill with ceramic rollers (we use ceramic rollers as metal rollers can adversely affect some pigments)

After the first run over the mill a sample of the paint is then run over our Hegman Gauge to test the fineness of the grind, we use this method to ensure the pigment has the same particle size as the previous batch, if not we run the paint over the mill again and again until we reach the desired grind

We then test viscosity, density and finally paint out a swatch of the colour against the original finalised paint test swatches

The final paint is then left for a further 2 weeks as part of our quality control process before being hand filled into our tubes, pots or pans and finally labelled

We recommend

Using distilled water with all our watercolours to keep each pigment at its purest form

Please feel free to message us with any questions you may have

Our watercolours are perfect for artists of all experiences from beginners to advanced who value high-quality materials

Check out our blog post on Ultramarine Pigments:

𝐏𝐫𝐨𝐝𝐮𝐜𝐭 𝐢𝐧𝐟𝐨𝐫𝐦𝐚𝐭𝐢𝐨𝐧:
Pigment: Ultramarine Blue
Pigment c.i number: P.B 29
Series: 2
Lightfastness: AAA
Opacity: Semi-Opaque at full strength - very transparent when mixed with a little water


Customer Reviews

Based on 5 reviews
John Rumsey
French Ultramarine

As usual a very good professional tube of paint.

Jackmans handmade watercolours french ultramarine

jackmans handmade watercolours are great and french ultramarine is one of my favourite colours their colours are rich and creamy and vibrant they go future due to there strength therefore you can achieve more subtile shades and the preformance of the colour is great and flowes great in washes and is good when layer your washes and I am slowly transitioning to useing Jackmans hade made colours as I feel it will lift my art to another level

Gorgeous rich pigment

I love this paint, it's vibrant, rich and so easy to blend, I've used another leading professional brand up until now but this beats it. Well done Jackmans

Julie King
A beautiful blue

This is the most well used shade of blue in my palette. Mixes well with yellow to make a variety of greens, produces a rich purple when mixed with Red and neutral grey shades with Burnt sienna. Love it!

Alison Yarrow
Rich colour

This produces a brilliant rich pool of colour and goes a long way. Really nice to use.

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