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Rembrandt Soft Pastel - Madder Lake Deep 331.7, Full Stick

Soft Pastel

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$4.44

Blick Art Materials · recorded Oct 21, 2026, 6:54 AM UTC

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Product details
Blick SKU
20026-3421
About this product range
  • Professional quality
  • Pure pigments bound in fine kaolin clay
  • Smooth, intense color laydown
  • Firmer texture ideal for detail and layering
  • Clean, low-dust application
  • Full stick size: 2-3/4"L × 7/16"Dia

Rembrandt Soft Pastels have been made in the Netherlands since 1899 using pure, finely milled pigments and minimal amounts of kaolin clay as a binder. This low-binder formula keeps the colors clean and brilliant, while giving the sticks a soft, smooth texture that's just firm enough to give you control. You can blend easily, build up layers, or draw clean, sharp lines without the crumbling that sometimes happens with extra-soft pastels.

Completely free of heavy metals like cadmium, cobalt, and lead, every color is developed from its own unique formula to get the best possible color intensity and handling. The pigment and clay are mixed, then shaped through a small-scale extrusion process, which produces consistently sized, uniform sticks. Throughout the process, everything from pigment grind to final wrapping is tightly quality-controlled, resulting in professional-grade lightfastness and a premium feel and finish.

Full sticks are wrapped and sold individually or in sets. Half sticks measure 1-3/8"L × 7/16"Dia and are unwrapped, available only in sets.

__Color guide:__ Numbers like 205.3 refer to the color and tone. The decimal tells you how the color is adjusted—.2 and .3 mean it’s mixed with black, .5 is the full shade, and .7 through .12 are tints with increasing amounts of white.

Pigment information

General reference notes about pigments can describe other media (such as oil). They do not verify this product’s exact formulation or behavior.

Permanent Bordeaux

Pigment code
PR12
Type
organic, monoazo
Properties
Permanent Bordeaux has excellent tinting strength.
Permanence
Permanent Bordeaux is reported to have good lightfastness.
History
Permanent Bordeaux (PR12) was discovered by H. Wagner in 1921. It has been used in many printing inks, plastics colorants, textile paints, and industrial paints. It is widely manufactured.
Description
Aquarine Bordeaux, Irgalite Bordeaux, Solintor Rubine

Pyrrole Red

Pigment code
PR254
Type
organic, aminoketone
Chemical name
Bis-(p-chrolopheny)-1. 4-diketopyrrolo(3. 4-c)pyrrole
Properties
Pyrrole Red is opaque and has strong covering power. According to manufacturer Ciba, which uses the trade name Irgazin Red, it is a “clean, highly saturated mid shade red with high temperature resistance, excellent color strength, outstanding chemical, solvent and bleed resistance, and good weatherfastness.”
Permanence
Pyrrole Red is considered to have excellent lightfastness among organic pigments in its class. Tests in industrial applications have given it scores of 7-8 on the Blue Wool Scale.
Toxicity
According to the Australian government's Ministry on Health and Aging, "The notified chemical exhibited low oral and dermal toxicity in rats, did not exhibit toxic effects when administered orally to rats for 28 days, was not a skin irritant in rabbi
History
Pyrrole Red, used as an automotive paint and as a colorant in plastics, was developed as one of a range of pigments to replace lead based pigments. In art materials, it is often used as a synthetic and lightfast replacement for carmine, a laked pigment that was originally produced from the body of the cochineal insect. It is also used to replace the older naphthol reds, organic red pigments that are sometimes only marginally lightfast and weatherfast.
Description
Magnacryl Red, Versal Red, Microlith Red, Unisphere Red, Cromophtol Red, Irgazin Red.

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