We use anaimal fat at the car dealership I work at. Makes mounting 26" tires a breeze! Bead sealer is very easy to use. Just dismount your tire, cleaned the rim and tire bead area, apply a good amount to the rim bead and remount the tire. Bead sealer is a great tool to also help keep the right rear tire on the rim while running such low air pressure. If you do use bead sealer, try not to use any sort of lubrication while mounting the tire. It may react with the bead sealer and render it useless.