LaserCutZ produced special order of laser cut and engraved Teflon washers for DC Metro Transportation Authority. Teflon is heat resistant material that has many uses in various industries. Teflon needs to be cut with CO2 laser to ensure that big amount of energy and temperature is supplied to “brake” material. While CO2 laser cutter and cut Teflon, it cannot engrave it. For engraving on Teflon we use Fiber laser which operates at different frequency. Fiber laser has possibility to change black color to white without melting material.