09/24/2026
Trivia time! Did you know the iconic orange Space Shuttle external tank was originally painted bright white?
On the first two shuttle missions STS1 and STS2, NASA used a white latex spray coating over the tank insulation to protect it from ultraviolet light exposure while sitting on the launch pad.
A lot of people do not consider the overall weight of coatings on large scale applications, but film thickness directly converts to physical mass. That single layer of white paint added roughly 600 pounds to the launch configuration.
Starting with STS3, engineers realized the UV light exposure caused minor color shifting on the foam rather than structural damage. By leaving the foam unpainted in its natural orange rust hue, NASA instantly saved 600 pounds, allowing that exact weight to be repurposed for additional science cargo and payload capacity.
Whether you are launching hardware into orbit or finishing high precision commercial components, coating weight and proper surface specification always play a critical role in end performance.
Contact Ascendant Coatings Ltd. today to discuss your next precision finishing project.
