The production of pipes and fittings in the composite sector makes extensive use of polyester and vinylester resins, selected based on the type of liquids and vapors that will flow through the final product. Polyester resins are primarily used during the lamination phase, providing the structural integrity required for the component. These resins are chosen for their high rigidity and excellent mechanical strength, essential for maintaining the durability of pipes and fittings under mechanical stress.
On the other hand, vinylester resins are typically applied in the initial lamination layers to create a barrier coat, which comes into direct contact with the liquids or substances flowing inside the pipe. This layer ensures superior chemical resistance, protecting the structural core from aggressive agents and extending the lifespan of the product.
