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Alternative process
AdvancedGum Print Sanguine
The soul of a Renaissance drawing
Gum Print Sanguine is our Aquaprint variant using a single pigment: natural raw sienna. One coat reveals a warm monochrome in sepia-rust tones reminiscent of Old Masters' sanguine drawings. The pre-sensitized VP gum eliminates all bichromate — safe for kitchen use.
The pictorialist heritage
Gum print (gum bichromate in its old formula) was the technique of choice for pictorialists at the turn of the 20th century. By choosing raw sienna as the pigment, one recaptures the warmth of sanguine drawings by Leonardo da Vinci. The VP kit eliminates potassium bichromate — the gum is already pre-sensitized.
Materials
640 gsm watercolour paper · Transparent gesso · VP Gum N°03 (pre-sensitized) · VP Developer N°06 · Orange Pigment N°14 or Red Ochre N°15 · Foam roller
100% non-toxic
All our chemistry is reformulated by Vision Picturale to be safe for home use. No toxic products whatsoever.
In 4 steps
How it works
Prepare
Scald the 640 gsm sheet, then apply 4 coats of transparent gesso (sizing).
Calibrate
Melt the VP gum in a bain-marie, mix in Orange Pigment N°14, apply by brush then roll with a foam roller.
Expose
Expose with the Luminograph (3 to 6 min — negative). The warm pigment requires slight overexposure.
Reveal
Develop 10 s in diluted N°06 bath, then clear in hot water (40°C) — the Renaissance drawing appears.
