A mixing apparatus for a plural component spray applicator configured to receive a first fluid and a second fluid and to mix the fluids to generate a plural component fluid that is sprayed from the plural component spray applicator, the mixing apparatus comprising: a stationary mix chamber including a spray orifice, wherein the spray orifice is configured to dispense the plural component fluid; and a valve assembly disposed at least partially within a fluid housing, wherein the valve assembly is configured to control a flow of fluid and air to the stationary mix chamber, wherein the valve assembly comprises: a first valve configured to translate between a first fluid open position and a first fluid closed position, wherein: the first valve disengages a first valving seal when in the first fluid open position and engages the first valving seal when in the first fluid closed position; and a second valve configured to translate between a second fluid open position and a second fluid closed position, wherein: the second valve disengages a second valving seal when in the second fluid open position and engages the second valving seal when in the second fluid closed position; wherein the first valve and the second valve are operatively connected for simultaneous actuation, characterized in that the first valve allows air to flow past the first valve and to the stationary mix chamber when in the first fluid closed position and the first valve prevents the air from flowing to the stationary mix chamber when in the first fluid open position;, and the second valve allows air to flow past the second valve and to the stationary mix chamber when in the second fluid closed position and the second valve prevents the air from flowing to the stationary mix chamber when in the second fluid open position. a stationary mix chamber including a spray orifice, wherein the spray orifice is configured to dispense the plural component fluid; and a valve assembly disposed at least partially within a fluid housing, wherein the valve assembly is configured to control a flow of fluid and air to the stationary mix chamber, wherein the valve assembly comprises: a first valve configured to translate between a first fluid open position and a first fluid closed position, wherein: the first valve disengages a first valving seal when in the first fluid open position and engages the first valving seal when in the first fluid closed position; and a second valve configured to translate between a second fluid open position and a second fluid closed position, wherein: the second valve disengages a second valving seal when in the second fluid open position and engages the second valving seal when in the second fluid closed position; a first valve configured to translate between a first fluid open position and a first fluid closed position, wherein: the first valve disengages a first valving seal when in the first fluid open position and engages the first valving seal when in the first fluid closed position; and a second valve configured to translate between a second fluid open position and a second fluid closed position, wherein: the second valve disengages a second valving seal when in the second fluid open position and engages the second valving seal when in the second fluid closed position; wherein the first valve and the second valve are operatively connected for simultaneous actuation, characterized in that the first valve allows air to flow past the first valve and to the stationary mix chamber when in the first fluid closed position and the first valve prevents the air from flowing to the stationary mix chamber when in the first fluid open position;, and the second valve allows air to flow past the second valve and to the stationary mix chamber when in the second fluid closed position and the second valve prevents the air from flowing to the stationary mix chamber when in the second fluid open position.