One of the reasons for using a tire mounting lubricant is to prevent improper bead seating. We believe that if a tire bead is not properly secured to the rim, it can lead to air leaks and other problems. The lubricant helps to hold the beads in place so that they are properly secured. After applying the lubricant, you can proceed to mount the tire to the rim. After mounting the tire, you can check that the bead is correct. If everything looks good, you can proceed to inflate the tire to the pressure indicated by the manufacturer.