PVC foam sheet is manufactured using a high-temperature tunnel furnace foaming process, which involves the use of a mixed slurry comprising polyvinyl chloride resin, plasticiser DOTP, blowing agent, flame retardant and other additives. The resulting soft microporous rolls of foam are then cooled and shaped. PVC is an excellent sealing material, offering a waterproof sealing performance that is even more impressive than that of conventional soft foam. The PVC foam sheet roll is also highly flexible, allowing it to conform to irregular surface curves and shapes. This makes it ideal for use in a variety of applications, including cutting into foam tape or foam gasketing. It is used for sealing in different fields such as construction and the automotive industry.