This report covers a product development project, conducted as a Bachelor thesis for the Innovation- and design engineering program at Karlstad University. The project was conducted during the spring of 2021 and comprises 22.5 hp. The author of this report is student Sanna Kjellberg, the supervisor for the project is Christina Gabrielsson and the examinator is Leo De Vin.  The project follows a traditional product development methodology, with a few modifications regarding the different phases. Following phases was included in the project: Project planning, feasibility study, analysis, concept development, concept selection and final concept. The work is presented in the form of this report, a virtual exhibition and a final presentation. The company who provided the assignment is ProSeal, which are the short term for Professional Sealing Sverige AB. The company has their main office located at Örsholmen, Karlstad and all their suppliers are located in Värmland. The division of the company where the project took place is called Leak Sealing. The process with leak sealing is built on repairing the leak during production, in order to counteract shutdown of the production.  Leak sealing is therefore a very time sensitive process. This project aims to develop the design of the leak sealing clamp in order to reduce delivery time. The project was conducted in collaboration with ProSeal and after a meeting the project took a turn towards design, rather than the dimensions of the product.  The project is therefore a combination of different analysis regarding manufacturing, mounting and the product design. The result is a developed leak sealing clamp with a shorter delivery time, which also is more user-friendly because a decrease of material.