Since sealant cures quickly, it is common practice to seal the nozzle with adhesive tape if there is sealant remaining, but if this step is neglected or the nozzle is not sealed properly, the sealing material is cured and wasted. This product is really attentive to the needs of the work site, can halt curing by simple insertion of the sealant nozzle deep inside ‘Deruko’ with the help of special laminating technology.