French Ultramarine Deep
French Ultramarine Deep
Professional Handmade Watercolour
Swatch Painted on: Saunders Waterford, White, Rough, 100% Cotton, Mould Made, Acid Free, 300 gsm Watercolour Paper
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
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:
Pigment: Ultramarine Blue
Pigment c.i number: P.B 29
Opacity: Semi-Opaque at full strength - very transparent when mixed with a little water
Thank you for these color gems!
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