We highly recommend getting your driveway seal coated every three years at minimum, or every two ideally, in order to ensure the maximum driveway lifetime / durability. Anything sooner than around 15-17 months might cause issues with the driveway. The material needs time to wear. Imagine putting a layer of lotion on your body, and then another, and another, all in a few minutes or hours in the day. You’re just going to end up dripping with lotion. Sealer can get wet and sticky if used too often. It can and will track into your home if you have it done too often, unless advised otherwise.