Tricresyl phosphate (TCP) is used as a solvent for nitrocellulose esters and numerous natural resins.
It is a plasticizer for chlorinated rubber, vinyl plastics, polystyrene and polyacrylic and polymethacrylic esters.
Tricresyl phosphate also acts as a binder for resins and nitrocellulose to improve toughness, elasticity and polishing properties of coatings.
It is also employed as a hydraulic fluid. When incorporated in gasoline, tricresyl phosphate counteracts the harmful effects of lead deposits.
In addition, it is an excellent fire retardant in many industries.