Table of Contents
What do pigment numbers mean?
Pigment numbers tell you exactly which pigment was used in the ingredients. For example PB28 is traditionally used for Cobalt Blue. The “PB” means “pigment, blue”, and “28” means that it’s the 28th blue pigment listing in the color index. You also want to look at the quantity of pigments used in the formula.
What do numbers on paint can mean?
The numbers fall between 0 and 99. The 76 represents the color’s light reflectance value, or LRV. This is essentially the lightness or the darkness of a color, where 0 is pure black and 99 is pure white.
What is py42?
Pigment Yellow 42 (C.I. 77492) is a yellow Iron Oxide with chemical formula FeOOH and a geothite structure. It provides a dull buff shade.
What is a paint code?
It is the list of ingredients and proportions used to make the color. Formulas are not universal because they depend on the specific ingredients, and every paint company has different ingredients.
What is Colour Index in pigment?
Created in 1925, the Colour Index International is a database of pigments and dyes published by the Society of Dyers and Colourists and the American Association of Textile Chemists and Colorists.
How do you read a paint label?
HOW TO READ A PAINT TUBE
- 1) MARKETING NAME. You might think that the name of the paint colour is so self-evident that it requires little discussion.
- 2) PERMANENCE RATING.
- 3) SERIES NUMBER.
- 4) COLOUR INDEX NAME/NUMBER.
- 5) PAINT VEHICLE.
- 6) LIGHTFASTNESS RATING.
- 7) OPACITY.
- 8) ASTM STANDARD CONFORMITY and 9) ACMI SEAL.
What do the numbers on acrylic paint mean?
The numbers indicate the chemical compound present in the paint. If the paint contains one pigment, then only one color index name will be listed. If the paint is a mixture of pigments, then more than one color index name will be listed.