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Holbein Acryla Gouache - Sepia, 20 ml tube

Item #:00811-8081
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Holbein Acryla Gouache - Sepia, 20 ml tube
Holbein Acryla Gouache - Sepia, 20 ml tube

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Product Details

Color:
Sepia
Mfg #:
D135
No.
135
Size:
20 ml

Pigment Information

This color contains the following pigments:

PBk7-Lamp Black

PBr6-Mars Brown


Pigment Name

PBk7-Lamp Black

Pigment Type

inorganic

Chemical Name

carbon

Chemical Formula

C

Properties

Lamp black is a very opaque, heavily staining black pigment that does not have much covering or tinting power. It is typically the most opaque black in watercolor form. Though a very pure black, it tends to muddy slightly in mixtures. Natural sources may be brownish or bluish in tone because of impurities. When used in oil paints, it is one of the slowest drying pigments, and should not be used in underpainting or applied in layers underneath other colors.

Permanence

Lamp Black is very lightfast and absolutely permanent. It is used in all techniques in permanent painting.

Toxicity

Carbon itself is not considered hazardous, however other combustion products that are hazardous are often present as impurities when Lamp Black is produced from natural materials. For this reason, commercial preparations of the pigment should be considere

History

Lamp Black is a carbon based black traditionally produced by collecting soot (known as lampblack) from oil lamps. It has been used as a pigment since prehistoric times. It is the black found in Egyptian murals and tomb decorations and was the most popular black for fresco painting until the development of Mars Black.


Pigment Name

PBr6-Mars Brown

Pigment Type

Chemical Name

iron oxide

Chemical Formula

Fe2O3

Properties

Mars Brown has similar general properties to the pure red oxides, and it is often a mix of synthetic forms of oxides such as PY42, PR101, and PBk11. Its tinting strength is low, and it dries quickly. Hues vary based on manufacturer.

Permanence

Mars Brown has excellent permanence and lightfastness, with outstanding resistance to chemicals, heat, and weather.

Toxicity

Mars Brown is not considered toxic, although care should be taken not to breathe its dust.

History

Unknown.


Safety Data Sheet

UPC Code: 4900669071358

ASIN #: B003CIXGOE