What is the impact of color on heat reflective coatings?
ASTEC products can be prepared in a variety of colors. However, the colors will have a negative impact on the solar reflectivity of the coating. The following base colors are indicative of the drop in solar reflectivity: Base brown has a 12% reflectivity which increases to 16% when mixed in a 1 (part white) to 1 (part brown) ratio, 20% in a 4 (part white) to 1 (part brown), and 40% in a 16 to 1 ratio. Base red has a 22% reflectivity; in the 1 to 1 ratio, it increases its reflectivity to 26% and reaches 40% in the 4 to 1 ratio. Base gray has a reflectivity of only 9% which raises to 25% on a 1 to 1 ratio. Base blue has a reflectivity of only 12% but it increases to 49% on a 1 to 1 ratio. Base green on a 1 to 1 ratio starts at 11% and goes up to 53% in a 4 to 1 ratio. Base yellow indicates a 43% reflectivity on a 1 to 1 ratio, 65% reflectivity on a 4 to 1 ratio, and 70% reflectivity on a 16 to 1 ratio. Many clients prefer a loss of reflectivity in exchange for a livelier color than white
