With the economy booms in China, more and more Chinese families see cars as their necessity in daily life. Wash the car with a mixture of dish detergent and water to rid it of any surface contaminants and old wax. Dry the area with a lint-free towel, and then clean it with another clean towel and rubbing alcohol. The alcohol will get rid of anything on the surface that the detergent didn't remove.

Set large decals out in the sun for an hour or so. This will soften the decal and allow it to more easily conform to the curves of the car. Park the car itself in a shady area, but don't apply the decal to any surface outside of 50 to 90 degrees. The ideal ambient and surface temperature is between 80 and 85 degrees; warm enough to keep the vinyl pliable, but not enough to make thesticker labels gooey.

Mix up a solution of four to five drops of dish detergent or Ivory liquid soap to one quart of warm water and pour it into a spray bottle. Spray a liberal amount of soap solution onto the entire decal-application area, and keep it moist during application. The soap will interfere with the sticker labels, allowing you to slightly reposition the decal and squeeze the bubbles out. Pull the opaque backing material off of the decal and have an assistant help you to position it on the car.

Spray the top of the clear transfer film with a liberal amount of soapy water and start going over it with your squeegee to seat the decal and drive the bubbles out from underneath. Work in small areas, making sure that each is perfectly smooth as you go. Once most of the water squeegees out, bubbles might get trapped in the now-dry stickers labels and prove impossible to remove.