Electrostatics by Itamar Greenfield ('19)
Electrostatics can be used to greatly increase the efficiency of spray paint. The paint particles can be positively charged, which causes the individual particles to repel each other when sprayed from the can. The individual paint particles then spread out more and can paint a larger surface. The surface that is getting painted can also be negatively charged, which causes the positively charged paint particles to be attracted to it. This causes more of the paint to hit the targeted surface and less of the paint to be wasted. Overall, this process causes less paint to be wasted and a wider area to be painted, increasing the efficiency of the spray paint.