Karndean K-Spray uses 80% less adhesive when compared to trowel-applied epoxy and bucket adhesives, and dries in as little as 10-20 minutes. K-Spray comes in 22 oz. cans, which cover between 150 and 185 square feet, and may be used on substrates with moisture readings up to 90% RH. Immediate foot and rolling traffic is allowed after the final installation, including Hill-Rom beds.