Cap for the nozzle of a caulking cartridge

For placement on the end of a nozzle, such as the nozzle of a cartridge adapted to be loaded into a dispensing tool for dispensing caulking or other hardenable and extrudable material from the cartridge, a cap for sealing the nozzle and preventing discharge therefrom, said cap comprising an elongate hollow body closed at one end constituting its front end and open at its back end for placement of the cap on the nozzle with the nozzle received inside said body, an elongate plug formed integrally with the body and extending rearwardly within the body from the front end thereof, said plug being adapted to enter the nozzle and plug it on placement of the cap on the nozzle for sealing the nozzle and preventing said discharge, and a spring clip formed integrally with the body on the outside of the body for detachably mounting the cap on a generally rod-shaped handle of the dispensing tool with the longitudinal axis of the cap generally parallel with the handle when the extrudable material is being dispensed from the cartridge via the tool, said clip comprising a pair of relatively wide arms extending one alongside the other on the outside of the body axially of the body and defining an elongate passage therebetween decreasing in size from one end to the other for receiving said handle, said arms being of resilient material and adapted to flex apart and grip the handle when the handle is received in said passage thereby to mount the cap on the handle.