Royal Futura 800 Typewriter Plastic Key Top White Crud Removal Cleaning Servicing by [[Phoenix Typewriter]]

For the white, crusty out gassing (or off gassing) on plastic typewriter keys, Duane recommends a round or two of Simple Green with a stiff bristle brush. Follow this up with a scrub down using WD-40 to displace the water from the Simple Green and then follow up with denatured alcohol, which is safe on plastics, and a wipe down with a rag to dry.