Use of injected sealant to improve dynamic tire balance

A method of applying a sealant layer to an inner surface of a tire, the method comprising:

• (a) identifying a circumferential location of a first balance light spot on a first side of the tire as a first angle θr measured about a rotational axis of the tire from a physical indicia on the tire;
• (b) identifying a circumferential location of a second balance light spot on a second side of the tire as a second angle θB measured about the rotational axis of the tire from the physical indicia;
• (c) determining a target starting location for a sealant bead adjacent the first side of the tire as a target starting angle θS measured about the rotational axis of the tire from the physical indicia, the target starting angle θS being determined as a function of the first angle θr;
• (d) determining a target ending location for the sealant bead adjacent the second side of the tire as a target ending angle θF measured about the rotational axis of the tire from the physical indicia, the target ending angle θF being determined as a function of the second angle θB;
• and
• (e) applying the sealant bead to the inner surface of the tire in a spiral pattern beginning at an actual starting location selected based upon the target starting angle θS and ending at an actual ending location selected based upon the target ending angle θE.