You can see the strength on the seam by hot welding. As we all know, even the best PVC glue will aging and open due to sunlight UV and water, resulting in air leakage. In case the gluing by hand is not carefully enough, or the quality of the glue itself is not good, it will be even worse!
1.The two pieces of PVC bonded with hand glue were easily torn apart by one person, and the PVC was not damaged;
2.However, the two pieces of hot-welded PVC were torn apart by two adult very difficult, and the PVC material had been torn, exposing the mesh fabric inside the PVC.
As you see, the seam of PVC fabric is melted into one body, so absence of sharp objects, there will be no air leakage, which greatly extends the life of your boat.