Epoxy stair nose caulk is recommended for all stair tread installations. Nose caulk is necessary when installing Adjusta-Nose treads or when the step nosing is broken, worn, or rounded. This two-part epoxy caulk will fill voids at the nose of the step and give needed support underneath the stair tread nose. Nose caulk can also be used to repair the top surface of the step. Available in two-part mixture quart (mixing instructions on label) or in a dual cartridge for use in standard or deluxe dispensers. Quart unit yields approximately 75 ft of 1/4" bead. PLEASE NOTE: ADHESIVE IS NOT RETURNABLE See Specs.