Second kai38. Typically for large applications, have a spray bottle with water/soap when applying. This allows for positioning before complete adhesion.
Thoroughly clean the surface with soap and water to degrease and clean the surface of debris and let completely dry
You can do one of two things:
1. Spray the clean surface with the soapy spray bottle OR
2. Apply dry if you are certain of the applied area and have no fear
If using the spray bottle method, you can peel off the entire backing and layout the decal directly on the water.
Once you have the decal positioned, starting at one point, use a flat surface (ie: a credit card or piece of plastic) to "sweep" out the air bubbles and liquid.
Always move from starting-point-center to edge of decal as you sweep. This allows the bubbles to be expunged out from under the vinyl without getting trapped.
Once the entire vinyl has been laid, let sit out and dry.
Check for tiny air bubbles. Use an exacto knife or sharp point object to poke holes to release the air and smooth out the vinyl. Use a heat gun to expedite the process as you poke holes.
If going in dry, start at one point, and slowly begin to peel off the backing from the start point using the sweep method. This will keep dirt and other debris from attracting to exposed adhesive as you adhere it to your surface. Use the exacto knife/heat gun method to relieve air bubbles and smooth out the little bumps.
Try to do this not in direct sunlight or on hot surfaces. You vinyl may stretch as you apply it to your surface.