Henry Driveway Elastomeric Emulsion Crack Filler

Would there be any benefit to heat the asphalt crack with a flame torch prior to applying the sealant, for better adhesion?

Do you work it in with a brush after you pour it onto cracks?

I have a couple of 1" round x 1/2" deep holes in my asphalt driveway. Would this be a good product to fill them?

Does the gallon size come with an applicator spout?