Both parts, Resin and Hardener are included in the set. This is a very hard, self leveling epoxy flow coat - see our application guide here. A pail kit is 56 lbs net, gallon kits are 8.75 lbs net and quart kits are 2.5 lbs net. A quart kit will cover 4-4.5 square feet @ 1/8 inch. A gallon kit will cover 14-15 square feet @ 1/8" thick.