This is the type that goes on with a wet spray. The small bubbles disappeared within hours, the larger ones push out with a real rubber squeegee (not the little cardboard thing most others give you). There is a trick to not getting the annoying dust bubbles- after a shower (air is damp, dust is saturated to the ground) apply in the bathroom, alternatively, use a mister to spray the air in a small room (bathroom works great)