lightfastness

Today we continue a six-part series on lightfastness, which is the resistance of various pigments and media to fading as a result of exposure to light.

Archive 2010-04-01 James Gurney 2010

Today we continue a six-part series on lightfastness, which is the resistance of various pigments and media to fading as a result of exposure to light.

Lightfastness: Markers James Gurney 2010

Another concern is the "lightfastness" of organic dyestuffs-some colors (reds and blues) are particularly prone to fading.

CR4 - Recent Forum Threads and Blog Entries horace40 2009

How long your prints will look good is called lightfastness, and it's a selling point for some printers (like, for example, the

PCWorld 2010

How long your prints will look good is called lightfastness, and it's a selling point for some printers (like, for example, the

PC World 2009

Industry labeling practice is to include a lightfastness rating on the paint packaging, and painters should only use paints that have a lightfastness rating of I or II under the testing standards published the American Society of Testing and Materials now ASTM International.

Lightfastness in Pencils, Watercolors, and Oils James Gurney 2010

I was always curious why colors like Alizarin Crimson have such a high lightfastness my gouache of Aliz. crimson and Spectrum violet are IV and V respectively Although my Acrylic version is a Liquixtex Alizarin Crimson Hue Permanent which has a lightfastness of I because it's made of Quinacridone, and the pigment's pretty much the same.

Lightfastness and Alizarin Crimson James Gurney 2010

Unfortunately, paint manufacturer lightfastness ratings are not always trustworthy.

Lightfastness in Pencils, Watercolors, and Oils James Gurney 2010

Crimson/PR 83 they give the "ASTM lightfastness rating: N/L" BUT according to their "Composition and Permanence Terms Explained" section, this doesn't stand for "Not Lightfast," it stands for "Not Listed".

Lightfastness and Alizarin Crimson James Gurney 2010

James - I've got a LOT of information about the lightfastness standard for coloured pencils and the lightfastness of different brands of coloured pencils on my information site Coloured Pencils - Resources for Artists.

Lightfastness in Pencils, Watercolors, and Oils James Gurney 2010