Eastwood offers its Eastwood Rust Encapsulator 15-oz. Aerosol Can in Silver Finish, model no. 16080Z, or Satin Red Finish, model no. 16040Z, for $15.99 plus $6.46 for shipping. That's the lowest total price we could find for any color by a buck, although we saw it in another color for $1 less last week. This epoxy-fortified encapsulator covers about 10 sq. ft. and is designed to stop surface rust from spreading.