Definition of lightfast in English:
(Of a dye or pigment) not prone to discolor when exposed to light.
- The Bisphenol A bischloroformate is then reacted with another chemical to produce a lightfast epoxy resin.
- I was wondering if anyone knows whether its nupastels are lightfast or not.
- Need the right expert in lightfast dye?
- lightfastness noun
- Example sentences
- When you've painted all the colors you want to test for lightfastness, cut the sheet in half.
- If a pigment has good lightfastness, it does not always mean that it has good weatherfastness
- This pigment identification project and a lightfastness standard can only lead to the increased recognition of this fine art medium.
Definition of lightfast in:
- British & World English dictionary
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