Pettit Flagship Varnish As the suns rays can create havoc with a boats finish, Pettit Flagship Varnish offers 6 times more UV inhibitors delivering unequaled protection against the suns damaging rays. A unique blend of phenolic and alkyd resins combined with tung and linseed oils provide excellent performance as well as a warm, light amber hue. Pettit Flagship Varnish has an ultraviolet light filter along with a light stabilizer that effectively screens the damaging rays of the sun for longer-la