Scientists Create Eco-Friendly Paint That Keeps the Surface Beneath Cool
Chanda and his team tested the impact this paint had on the temperature of buildings covered in structural paint versus commercial paints and they found that structural paint kept surfaces 20 to 30 degrees cooler. This, Chanda said, is a massive new tool that could be used to fight rising temperatures caused by global warming while still allowing us to have a bright and colorful world. Unlike white and black cars, structural paint’s ability to reflect heat isn’t determined by how dark the color is. Blue, black or purple structural paints reflect just as much heat as bright whites or beige. This opens the door for more colorful, cooler architecture and design without having to worry about the heat.
It’s not just cleaner, Chanda said. Structural paint weighs much less than pigmented paint and doesn’t fade over time like traditional pigments. “A raisin’s worth of structural paint is enough to cover the front and back of a door,” he said. Unlike pigments which rely on layers of pigment to achieve depth of color, structural paint only requires one thin layer of particles to fully cover a surface in color. This means that structural paint could be a boon for aerospace engineers who rely on the lowest weight possible to achieve higher fuel efficiency. The possibilities for structural paint are endless and Chanda hopes that cans of structural paint will soon be available in hardware stores.
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