Glaze

In painting a glaze is a transparent layer of paint brushed over a dried underlayer. Generally associated with oil painting, glazes can also be applied on top of each other to create a feeling of depth and luminosity in the work, also protecting the paint and adding richness to the colour. In ceramics it is a glassy coating, either transparent or coloured, applied before firing to give a water-resistant, lustrous surface.

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Colley Cibber, possibly from the studio of Sir Henry Cheere, 1st Bt, circa 1740 - NPG  - © National Portrait Gallery, London

Colley Cibber
possibly from the studio of Sir Henry Cheere, 1st Bt
circa 1740
NPG 1045

Tom Cribb, by Unknown artist, circa 1810-1815 - NPG  - © National Portrait Gallery, London

Tom Cribb
by Unknown artist
circa 1810-1815
NPG 5812

Sir Henry Wylie Norman, by Unknown photographer, mid-late 1850s - NPG  - © National Portrait Gallery, London

Sir Henry Wylie Norman
by Unknown photographer
mid-late 1850s
NPG x21537

William Booth, by Unknown artist, circa 1900 - NPG  - © National Portrait Gallery, London

William Booth
by Unknown artist
circa 1900
NPG 5814

Sir Leslie Stephen, by George Charles Beresford, 1902 - NPG  - © National Portrait Gallery, London

Sir Leslie Stephen
by George Charles Beresford
1902
NPG x12918

Susie Cooper, by Susan Vera (

Susie Cooper
by Susan Vera ('Susie') Cooper
circa 1933
NPG 6375

Eartha Kitt; Unknown woman, by (Edward) Russell Westwood, 1951 - NPG  - © estate of Russell Westwood / National Portrait Gallery, London

Eartha Kitt; Unknown woman
by (Edward) Russell Westwood
1951
NPG x35237

Christine Keeler, by Geoffrey Davien, 1964 - NPG  - Photograph © National Portrait Gallery, London

Christine Keeler
by Geoffrey Davien
1964
NPG D2726

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