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Winsor & Newton Artists' Oil - Davy's Gray 37ml

Special Price $19.65 Regular Price $23.10
SKU
1214217

ARTISTS' OIL COLOUR DAVY'S GRAY

Davy's Gray is a soft grey colour traditionally including powdered slate pigments. It was developed by Winsor & Newton for the 19th c English artist Henry Davy, a pupil of famous water-colourist J S Cotman.

  • Pigment(s) PBK19, PY42, PBk7
  • Colour Number 217
  • Colour Series 2
  • Colour Vehicle Oil Linseed Oil/Safflower Oil
  • Lightfastness (ASTM) I
  • Permanence Rating AA
  • Transparency / Opacity ST
More Information
Size37 ml
New Colour Attribute#C7D2D1
BrandWinsor & Newton
Country of ManufactureUnited Kingdom
Type of Store Credit valueSelect

Colour Index Name: Each pigment can be universally identified by its Colour Index Generic Name. As an example: Cobalt Blue is Pigment Blue 28, abbreviated to PB28.

Series: The Series number indicates the relative price of the colour and is determined mainly by the cost of the pigment. Series 1 is the least expensive, and Series 5 is the most costly. Where there is no series column, this indicates the price is uniform across the range.

T/O - Transparency/Opacity: Transparent colours are marked ‘T' and semi-transparent ‘ST.' Opaque colours are marked ‘O' and semi-opaque ‘SO.' Transparency, however, is relative, and the ratings are provided as a guide only. In addition, any thin film of colour will appear more transparent than a thicker one.

Permanence: The permanence of an artists' colour is defined as ‘its durability when laid with a brush on paper or canvas, graded appropriately and displayed under a glass frame in a dry room freely exposed to ordinary daylight and an ordinary town atmosphere.'

In simpler terms, their resistance to change is when exposed to light and the atmosphere.

  • AA       - Extremely Permanent
  • A         - Permanent
  • B         - Moderately Durable
  • C         - Fugitive
  • For further information on some colours, the rating may include one or more of the following additions:
  • (i)         A' rated in full strength may fade in thin washes
  • (ii)        Cannot be relied upon to withstand damp
  • (iii)       Bleached by acids, acidic atmospheres
  • (iv)       Fluctuating colour; fade in light, recovers in dark
  • (v)        Should not be prepared in pale tints with Flake White, as these will fade
  • (vi)       A' rated with a coating of fixative

Lightfastness: Lightfastness is shown with an ASTM rating for the pigment. The ASTM abbreviation stands for the American Society for Testing and Materials. This organization has set standards for the performance of art materials, including a colour's lightfastness.  In this system, I has the highest lightfastness available, and V is the lowest, though ratings I and II are considered permanent for artists' use.

Where no ASTM rating is given for a Winsor & Newton colour, it is labelled as N/L, meaning "Not Listed," this usually indicates that the ASTM has not yet tested the pigment or the type of range. It does not necessarily imply a lack of lightfastness.

In these cases, we recommend that you refer to the Winsor & Newton permanence rating, which evaluates colour on many aspects, including lightfastness, and indicates a colour's ability to resist fading. 

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